{"title":"DSS Racing Pistons for Jeep Grand Cherokee HEMI","description":"\u003cp\u003eUpgrade Your Jeep Grand Cherokee HEMI with DSS Racing Pistons\u003c\/p\u003e\n\u003cp\u003eOur collection features premium DSS Racing pistons built specifically for your Jeep Grand Cherokee HEMI. Designed to improve engine durability, response, and power potential, these pistons are essential for performance enthusiasts seeking reliable upgrades. Whether you're building a high-performance build or enhancing daily drivability, our pistons deliver precision fitment and quality craftsmanship to meet your needs.\u003c\/p\u003e\n\u003cp\u003eFind everything you need to optimize your engine's performance in this category. Our selection includes pistons engineered for strength under boost, improved combustion efficiency, and long-lasting reliability. Proper internals are key to unlocking your vehicle’s full potential, whether for increased horsepower, better response, or enhanced durability. Shop performance pistons for your Jeep Grand Cherokee HEMI at FastHemis.\u003c\/p\u003e","products":[{"product_id":"6867-4090-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Piston Set 4.090\" Bore: Fits Dodge \/ Jeep \/ Ram 6.2L Hellcat (11-24)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6867-4090 \/ 2-6867-4090 \/ 3-6867-4090 \/ K1-6867-4090 \/ K2-6867-4090 \/ K3-6867-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for high-performance applications in most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk models. Designed to handle the extreme demands of the 376 Small Block Mopar Hemi Gen III engine, these pistons offer superior strength and durability for enthusiasts looking to maximize power and reliability. Whether you're building a street machine or a track-ready beast, this piston set provides the foundation for enhanced engine performance and longevity.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.090 inches and a compression height of 1.275 inches, these pistons are optimized for compatibility and performance. The +4cc dome top design allows for precise combustion chamber volume adjustments, enabling tuners to achieve ideal compression ratios for various setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to meet the rigorous demands of high-output Hellcat engines, the DSS Racing FX Series Forged Pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for exceptional strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003e4.090\" bore size, compatible with most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for reliable ring sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.2 inches for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable compression ratios approximately 12.06:1 (65cc), 10.79:1 (74cc), and 9.59:1 (85cc) to suit different performance goals\u003c\/li\u003e\n\u003cli\u003eDesigned for use with the 376 Small Block Mopar Hemi Gen III platform\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, providing an optimal balance of lightweight design and high tensile strength. This construction ensures the pistons can withstand the intense pressures and temperatures generated by boosted or naturally aspirated Hellcat engines. The dome top design enhances combustion efficiency and allows for fine-tuning compression ratios to match specific engine builds.\u003c\/p\u003e\u003cp\u003eEach piston features precision-machined pin bores and ring grooves to maintain tight tolerances and reduce wear. The option for full-floating or press-fit wrist pins offers flexibility depending on the engine builder’s preference and application requirements. The ring groove dimensions are engineered to provide excellent ring sealing while minimizing friction and wear, contributing to improved engine efficiency and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines, making installation straightforward for experienced engine builders. Proper machining and clearances should be verified during installation to ensure optimal performance and reliability. Depending on the chosen wrist pin configuration, minor adjustments to the connecting rods may be necessary. This piston set is ideal for high-performance rebuilds and custom engine builds aiming to increase power output and durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.090\" bore size\u003c\/li\u003e\n\u003cli\u003eWrist pin options: full-floating or press-fit\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for 1.2\/1.2\/3mm ring sets\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerformance enthusiasts upgrading or rebuilding 6.2L Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eEngine builders seeking durable forged pistons for high-boost or high-RPM applications\u003c\/li\u003e\n\u003cli\u003eStreet and track vehicles requiring enhanced piston strength and optimized compression ratios\u003c\/li\u003e\n\u003cli\u003eCustom Mopar Hemi Gen III builds aiming for reliable power gains and longevity\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380998717652,"sku":"1-6867-4090","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380998750420,"sku":"2-6867-4090","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380998783188,"sku":"3-6867-4090","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380998815956,"sku":"K1-6867-4090","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380998848724,"sku":"K2-6867-4090","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380998881492,"sku":"K3-6867-4090","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002142_4_64d7be5f-8d0a-46ac-b14a-9afccb99c587.webp?v=1771667033"},{"product_id":"6867-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Piston Set: Fits Jeep Grand Cherokee \/ Dodge Durango \/ Ram 1500 (11-26)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6867-4100 \/ 2-6867-4100 \/ 3-6867-4100 \/ K1-6867-4100 \/ K2-6867-4100 \/ K3-6867-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.2L Small Block Mopar Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Designed to handle the extreme power and stress of high-performance applications, these pistons provide enhanced strength, durability, and reliability over stock components. Whether you are building a street performance engine or a track-ready powerhouse, this piston set offers the precision and quality needed to maximize your engine’s potential.\u003c\/p\u003e\u003cp\u003eWith a compact dome top design and carefully calculated compression ratios, these pistons optimize combustion efficiency while maintaining compatibility with factory components. The FX Series pistons are ideal for enthusiasts and professional builders seeking a dependable upgrade that supports aggressive tuning and high boost levels.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to meet the demands of high-output Mopar Hemi engines, the DSS Racing FX Series Forged Pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" for precise deck clearance and optimal piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to fine-tune compression ratios for various combustion chamber sizes\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.2\" connecting rods typical of the 6.2L Hellcat engine\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes to achieve approximate compression ratios of 12.12:1 (65cc), 10.84:1 (74cc), and 9.64:1 (85cc)\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight design and exceptional strength. Forging enhances the metal grain structure, resulting in pistons that withstand the intense pressures and temperatures generated by forced induction and high RPM operation. The dome top design is engineered to optimize combustion chamber dynamics, improving power output and throttle response.\u003c\/p\u003e\u003cp\u003eEach piston features a durable ring groove profile designed to maintain ring seal under extreme conditions, reducing blow-by and oil consumption. The wrist pin options allow builders to select either full-floating or press-fit configurations based on their specific application and performance goals. This flexibility ensures compatibility with a wide range of engine builds and assembly preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for the 6.2L Small Block Mopar Gen III Hemi found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Installation requires standard engine assembly procedures, including proper ring end gap setting and piston orientation. No major modifications to the block or connecting rods are typically necessary, making these pistons a straightforward upgrade for performance rebuilds or engine builds.\u003c\/p\u003e\u003cp\u003eIt is recommended to verify piston-to-valve clearance and deck height during installation to ensure optimal fitment and avoid interference. Professional installation is advised to maintain engine reliability and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit, depending on selected option)\u003c\/li\u003e\n\u003cli\u003eRetaining clips for wrist pins\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, professional engine builders, and racers who demand reliable, high-strength components for their 6.2L Hellcat or Trackhawk engines. Whether upgrading a stock engine for increased boost levels, building a naturally aspirated high-compression motor, or assembling a custom race engine, the DSS Racing FX Series pistons deliver the durability and precision needed to support aggressive power goals.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380998914260,"sku":"1-6867-4100","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380998947028,"sku":"2-6867-4100","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380998979796,"sku":"3-6867-4100","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999012564,"sku":"K1-6867-4100","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999045332,"sku":"K2-6867-4100","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999078100,"sku":"K3-6867-4100","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002141_4_5f0c9a97-7bcf-49d7-8fb8-0375d4164f5d.webp?v=1771667033"},{"product_id":"6862-4125-6-2-small-block-mopar-hemi-gen-iii-fx-series-10cc-dish-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Pistons Set 6.2L Gen III Mopar Hemi: Fits most Hellcat Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6862-4125 \/ 2-6862-4125 \/ 3-6862-4125 \/ K1-6862-4125 \/ K2-6862-4125 \/ K3-6862-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.2L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. These pistons offer a perfect balance of strength, durability, and lightweight construction to handle the extreme power and torque demands of high-performance and forced induction applications.\u003c\/p\u003e\u003cp\u003eBuilt for serious enthusiasts and professional builders alike, these pistons provide improved reliability and enhanced engine efficiency, making them an ideal upgrade for those looking to maximize their Hellcat engine’s potential while maintaining OEM fitment and compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and high-quality materials, the DSS Racing FX Series Forged Pistons deliver exceptional performance benefits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from premium billet aluminum for superior strength and durability\u003c\/li\u003e\n\u003cli\u003eCompensated dish top design with -10cc volume for optimized compression ratios\u003c\/li\u003e\n\u003cli\u003eCompatible with full-floating or press-fit wrist pins (PIN: .927\") for versatile installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for reliable sealing\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" tailored for Gen III Mopar Hemi 383 Small Block applications\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.2\" for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to support compression ratios from 8.56 to 10.37\u003c\/li\u003e\n\u003cli\u003eEngineered to withstand high cylinder pressures typical of Hellcat supercharged setups\u003c\/li\u003e\n\u003cli\u003eDirect fitment for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are crafted from high-grade forged aluminum alloy, providing an excellent strength-to-weight ratio that reduces reciprocating mass and improves throttle response. The forging process enhances grain structure and fatigue resistance, ensuring long-lasting durability under extreme operating conditions.\u003c\/p\u003e\u003cp\u003eEach piston features a carefully calculated dish volume to optimize combustion chamber shape and compression ratio, enhancing power output and efficiency. The ring grooves are precision-machined to accommodate high-performance piston rings, ensuring superior sealing and oil control. The wrist pin design supports both full-floating and press-fit configurations, allowing flexibility for various engine builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing FX Series Forged Pistons are designed as direct replacements for the factory pistons in most 6.2L Gen III Mopar Hemi Hellcat and Trackhawk engines. Installation requires standard engine assembly procedures, and no major modifications are necessary when paired with compatible rods and crankshafts. Proper ring end gap and clearance checks are recommended during installation to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of 8 DSS Racing FX Series Forged Pistons\u003c\/li\u003e\n\u003cli\u003eCompatible wrist pins (full-floating or press-fit options)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons are ideal for performance enthusiasts, engine builders, and racers who demand reliable, high-strength components for their 6.2L Hellcat or Trackhawk engines. Whether upgrading for forced induction, high-boost applications, or naturally aspirated builds seeking improved durability and compression tuning, the DSS Racing FX Series pistons provide a solid foundation for serious power gains and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380998521044,"sku":"1-6862-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380998553812,"sku":"2-6862-4125","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380998586580,"sku":"3-6862-4125","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380998619348,"sku":"K1-6862-4125","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380998652116,"sku":"K2-6862-4125","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380998684884,"sku":"K3-6862-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002140_4_f6c136b9-e015-4f61-8c68-c3db2f4762d0.webp?v=1771667032"},{"product_id":"6867-4125-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Pistons 6.2L Gen III Mopar Hemi: Fits most Hellcat Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6867-4125 \/ 2-6867-4125 \/ 3-6867-4125 \/ K1-6867-4125 \/ K2-6867-4125 \/ K3-6867-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.2L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. These pistons are crafted to deliver superior strength, durability, and reliability under high-stress conditions, making them an excellent upgrade for enthusiasts seeking enhanced engine performance and longevity.\u003c\/p\u003e\u003cp\u003eBuilt to accommodate various compression ratios and combustion chamber volumes, these pistons offer flexibility for custom engine builds and performance tuning. Whether you are rebuilding your engine or upgrading for higher boost levels, the DSS Racing FX Series pistons provide the robust foundation needed for serious power gains.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and quality materials, the DSS Racing FX Series Forged Pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from high-strength aluminum alloy for optimal durability and weight savings\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve combustion efficiency\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" tailored for Gen III Mopar Hemi applications\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2\/1.2\/3mm for reliable ring sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.2\" for precise fitment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to achieve compression ratios from 9.74 to 12.24\u003c\/li\u003e\n\u003cli\u003eEngineered for high-performance street, track, and racing applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, ensuring exceptional strength-to-weight ratio and resistance to thermal and mechanical stress. The dome top design enhances combustion chamber dynamics, promoting efficient fuel burn and power output. Precision machining guarantees tight tolerances for optimal piston-to-cylinder wall clearance and ring fitment, reducing wear and improving engine longevity.\u003c\/p\u003e\u003cp\u003eEach piston is compatible with either full-floating or press-fit wrist pins, providing versatility for different engine builds and preferences. The ring grooves are engineered to maintain ring stability and minimize blow-by, contributing to improved engine efficiency and reduced oil consumption.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for the 6.2L Gen III Mopar Hemi engines used in Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Installation requires standard engine rebuild procedures, including proper honing and cleaning of cylinder bores. Depending on the wrist pin configuration chosen, either full-floating or press-fit installation methods can be employed. It is recommended to consult a professional engine builder to ensure correct piston ring end gaps and clearances for your specific application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of DSS Racing FX Series Forged Pistons (quantity as per SKU selection)\u003c\/li\u003e\n\u003cli\u003eWrist pins compatible with full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression height, dome volume, and ring groove dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are ideal for performance enthusiasts, engine builders, and racers who demand reliable, high-strength components for their 6.2L Hellcat or Trackhawk engines. Whether upgrading for forced induction, higher compression, or track use, the DSS Racing FX Series pistons provide the durability and precision needed to support increased power levels and aggressive driving conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999110868,"sku":"1-6867-4125","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999143636,"sku":"2-6867-4125","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380999176404,"sku":"3-6867-4125","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999209172,"sku":"K1-6867-4125","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999241940,"sku":"K2-6867-4125","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999274708,"sku":"K3-6867-4125","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002139_4_c521196b-f6bc-489e-b090-1c7e6d6770e5.webp?v=1771667032"},{"product_id":"6862-4090-6-2-small-block-mopar-hemi-gen-iii-fx-series-10cc-dish-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Pistons Set 4.090\" Bore: Fits Jeep \/ Dodge \/ Ram 6.2L Gen III Hemi","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6862-4090 \/ 2-6862-4090 \/ 3-6862-4090 \/ K1-6862-4090 \/ K2-6862-4090 \/ K3-6862-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.2L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Crafted to handle extreme power and high RPM conditions, these pistons offer a reliable upgrade for enthusiasts seeking enhanced durability and performance in their high-output Mopar engines.\u003c\/p\u003e\u003cp\u003eBuilt with a focus on strength and lightweight design, these pistons help improve engine response and longevity under demanding driving conditions, making them ideal for street performance, track use, and forced induction applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and manufacturing techniques to deliver superior performance and reliability:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.090\" bore size for 6.2L Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eCompensated dish top design with -10cc volume for optimized compression ratios\u003c\/li\u003e\n\u003cli\u003e1.275\" compression height for precise piston-to-cylinder fitment\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eDesigned for 3.578\" stroke and 6.2\" connecting rods, matching factory specifications\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes to achieve approximate compression ratios of 10.22:1, 9.32:1, and 8.44:1\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003cli\u003eEngineered to withstand high cylinder pressures and temperatures typical of Hellcat power levels\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from high-strength aluminum alloy, providing an excellent balance of durability and lightweight characteristics. The forging process enhances the metal grain structure, resulting in pistons that resist cracking and deformation under extreme stress.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design that optimizes combustion chamber volume and compression ratio, allowing for improved power output and efficiency. The ring grooves are precisely machined to accommodate high-performance piston rings, ensuring superior sealing and reduced blow-by.\u003c\/p\u003e\u003cp\u003ePin bosses are reinforced to support either full-floating or press-fit wrist pins, offering flexibility depending on engine build preferences. Overall, the design focuses on maintaining factory dimensions while delivering enhanced strength and reliability for high-performance applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines equipped with a 4.090\" bore. Installation requires standard engine assembly procedures, and no major modifications are typically necessary when used with compatible rods and cylinders.\u003c\/p\u003e\u003cp\u003eProper ring end gap and clearance checks are recommended during installation to ensure optimal performance and longevity. These pistons are suitable for both naturally aspirated and forced induction setups, making them versatile for various build goals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of 8 DSS Racing FX Series forged pistons (4.090\" bore)\u003c\/li\u003e\n\u003cli\u003eWrist pin options: full-floating or press-fit (depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons are ideal for performance enthusiasts and professional builders upgrading or rebuilding 6.2L Gen III Hemi Hellcat and Trackhawk engines. Whether you are enhancing a street machine, preparing a drag car, or building a track-ready vehicle, these pistons provide the strength and precision needed to support increased power levels and demanding driving conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999307476,"sku":"1-6862-4090","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999340244,"sku":"2-6862-4090","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380999373012,"sku":"3-6862-4090","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999405780,"sku":"K1-6862-4090","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999438548,"sku":"K2-6862-4090","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999471316,"sku":"K3-6862-4090","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002138_4_96af856c-cbde-40bf-ad2d-6833c5772481.webp?v=1771667031"},{"product_id":"6862-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-10cc-dish-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Pistons Set 4.100\" Bore: Jeep \/ Dodge \/ Ram 6.2L Hellcat Gen III Hemi","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6862-4100 \/ 2-6862-4100 \/ 3-6862-4100 \/ K1-6862-4100 \/ K2-6862-4100 \/ K3-6862-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.2L Hellcat Gen III Hemi engines found in many Chrysler, Dodge, Jeep, and Ram models. Crafted to meet the demanding requirements of high-performance and racing applications, these pistons offer exceptional strength, durability, and reliability under extreme conditions.\u003c\/p\u003e\u003cp\u003eIdeal for enthusiasts and professional builders looking to upgrade their engine’s internals, these pistons provide improved combustion efficiency and enhanced resistance to heat and stress. Whether you are building a street performance engine or a track-ready powerhouse, the DSS Racing FX Series pistons deliver the quality and performance needed to maximize your Hellcat’s potential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and manufacturing techniques, the DSS Racing FX Series Forged Pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.100\" bore size for 6.2L Hellcat Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability compared to cast pistons\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" optimized for performance builds\u003c\/li\u003e\n\u003cli\u003e10cc dish top design to control compression ratio and improve combustion\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for reliable ring sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.2\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable with various dish volumes to achieve approximate compression ratios ranging from 8.48 to 10.26\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-machined for exact fitment and balanced performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from high-grade aluminum alloy, providing an optimal balance of lightweight design and exceptional strength. Forging enhances the grain structure of the metal, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under high boost and elevated RPM conditions.\u003c\/p\u003e\u003cp\u003eEach piston features a carefully engineered dish top to manage combustion chamber volume and compression ratio, allowing tuners to tailor engine performance to specific applications. The wrist pins are designed for either full-floating or press-fit installation, offering flexibility depending on engine build preferences. Ring grooves are precision-cut to accommodate performance rings that maintain excellent sealing and durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are direct replacements for 6.2L Hellcat Gen III Hemi engines and fit most Chrysler, Dodge, Jeep, and Ram models equipped with this powerplant. Installation requires standard engine assembly procedures and attention to proper clearances and torque specifications. The pistons are compatible with factory or aftermarket connecting rods measuring 6.2\" in length and a stroke of 3.578\".\u003c\/p\u003e\u003cp\u003eDue to their forged construction and design specifications, these pistons are ideal for high-performance builds, including forced induction and naturally aspirated applications. Professional installation is recommended to ensure optimal engine performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons sized for 4.100\" bore\u003c\/li\u003e\n\u003cli\u003eWrist pins (.927\") with options for full-floating or press-fit\u003c\/li\u003e\n\u003cli\u003ePrecision-cut piston rings (1.2mm \/ 1.2mm \/ 3mm)\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerformance enthusiasts upgrading their Hellcat Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eEngine builders assembling high-output street or race engines\u003c\/li\u003e\n\u003cli\u003eForced induction applications requiring durable forged pistons\u003c\/li\u003e\n\u003cli\u003eTrack and drag racing vehicles needing reliable, high-strength internals\u003c\/li\u003e\n\u003cli\u003eAnyone seeking to improve engine durability and compression control\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999504084,"sku":"1-6862-4100","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999536852,"sku":"2-6862-4100","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380999569620,"sku":"3-6862-4100","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999602388,"sku":"K1-6862-4100","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999635156,"sku":"K2-6862-4100","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999667924,"sku":"K3-6862-4100","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002137_4_217522b2-9b00-4cd6-b9ae-e4fe442912d4.webp?v=1771667031"},{"product_id":"6857-4125-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set 4.125\" Bore: Fits most Hellcat Models","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6857-4125 \/ 2-6857-4125 \/ 3-6857-4125 \/ K1-6857-4125 \/ K2-6857-4125 \/ K3-6857-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Designed to fit a 4.125\" bore, these pistons are ideal for enthusiasts and professional builders seeking to enhance engine durability and power output. Featuring a +4cc dome top design, they provide increased compression ratios for improved combustion efficiency and performance gains.\u003c\/p\u003e\u003cp\u003eThese pistons are compatible with the 383 Small Block Mopar Hemi Gen III platform and are built to withstand the rigors of both street and track use. Whether upgrading a factory engine or building a custom powerplant, the DSS Racing FX Series pistons deliver reliable strength and precision fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and quality materials, these pistons offer several key benefits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design for increased compression and power potential\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.125\" bore size, ideal for 6.2L Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" optimized for performance builds\u003c\/li\u003e\n\u003cli\u003ePin diameter of .945\" with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for reliable ring sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for use with a 3.578\" stroke and 6.2\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable with various dome volumes to tailor compression ratio: 65cc (12.24:1), 74cc (10.95:1), and 85cc (9.74:1)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the DSS Racing FX Series is precision forged from high-grade aluminum alloy, ensuring exceptional strength-to-weight ratio and resistance to thermal expansion. The dome top design enhances combustion chamber efficiency by increasing compression without compromising piston integrity. The pistons feature carefully machined ring grooves and pin bores to maintain optimal sealing and reduce friction.\u003c\/p\u003e\u003cp\u003eThe option for full-floating or press-fit wrist pins allows builders to customize installation based on application requirements. The pistons are engineered to maintain tight tolerances for consistent performance and longevity in demanding environments.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines with a 4.125\" bore. Installation requires standard engine assembly procedures, with attention to proper ring end gap and wrist pin fitment based on the chosen configuration. No major modifications are typically necessary, making them suitable for both professional engine builders and experienced enthusiasts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts and engine builders upgrading or rebuilding 6.2L Hellcat and Trackhawk engines who want to increase compression and power output while maintaining reliability. It suits applications ranging from street performance to track and racing environments where durability and precision are critical.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999897300,"sku":"1-6857-4125","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999930068,"sku":"2-6857-4125","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380999962836,"sku":"3-6857-4125","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999995604,"sku":"K1-6857-4125","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000028372,"sku":"K2-6857-4125","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000061140,"sku":"K3-6857-4125","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002136_4_e450be54-4df0-4196-a34d-492280949a95.webp?v=1771667031"},{"product_id":"6860-4125-6-2-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Gen III Hemi Forged Piston Set 4.125\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Gen III Hemi Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler, Dodge, Jeep, Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6860-4125 \/ 2-6860-4125 \/ 3-6860-4125 \/ K1-6860-4125 \/ K2-6860-4125 \/ K3-6860-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Gen III Hemi Forged Piston Set is engineered specifically for high-performance applications in most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Designed to handle the extreme demands of forced induction and high horsepower builds, these pistons offer superior strength and durability compared to stock cast pistons. Whether you are building a street performance engine or a track-ready powerhouse, this piston set delivers reliable performance and enhanced engine longevity.\u003c\/p\u003e\u003cp\u003eThese pistons are ideal for enthusiasts and professional builders seeking to upgrade their Gen III Hemi engines with components that maintain factory bore size while improving compression and combustion efficiency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to exacting standards, the DSS Racing FX Series pistons incorporate advanced design elements to optimize performance and reliability:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.125\" bore size, fitting most Chrysler\/Dodge\/Jeep\/Ram 6.2L Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003eFlat top design with a -1.5cc dish for optimized combustion chamber volume\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" to maintain proper deck clearance and compression ratio\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter available in full-floating or press-fit options\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second ring grooves, 3mm oil ring groove for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.2\" connecting rods typical of Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratio configurations (approximate): 65cc for 11.36:1, 74cc for 10.26:1, and 85cc for 9.2:1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the FX Series is precision forged from high-grade aluminum alloy, ensuring exceptional strength-to-weight ratio and thermal conductivity. The flat top design with a slight dish enhances combustion efficiency and helps control detonation under high boost or high compression conditions. The pistons are engineered to exact tolerances to fit the 4.125\" bore of Gen III Hemi blocks, maintaining optimal piston-to-wall clearance and ring seal.\u003c\/p\u003e\u003cp\u003eThe wrist pins are available in both full-floating and press-fit styles, allowing builders to select the best option for their application and durability requirements. The ring grooves are machined to tight specifications to accommodate high-performance piston rings, ensuring excellent sealing and oil control under demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit upgrade for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines with a 4.125\" bore. Installation requires standard engine assembly procedures and proper ring end gap setting. No major modifications to the block or rods are typically necessary, making these pistons a straightforward upgrade for performance builds.\u003c\/p\u003e\u003cp\u003eBuilders should verify compatibility with their specific engine configuration and ensure proper clearances during assembly to maximize reliability and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons for all cylinders (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (.927\" diameter) with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression height, ring groove dimensions, and piston dish volume\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Gen III Hemi Forged Piston Set is perfect for performance enthusiasts, engine builders, and racers upgrading their 6.2L Hellcat or Trackhawk engines. It suits applications ranging from high-boost street builds to track-focused race engines where durability, strength, and precise fitment are critical. These pistons provide a solid foundation for increasing horsepower and torque while maintaining engine reliability under extreme conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999700692,"sku":"1-6860-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47380999733460,"sku":"2-6860-4125","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47380999766228,"sku":"3-6860-4125","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999798996,"sku":"K1-6860-4125","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999831764,"sku":"K2-6860-4125","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47380999864532,"sku":"K3-6860-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002135_4_bdc6f7b5-d9de-42b2-a775-62e02ccd1012.webp?v=1771667030"},{"product_id":"6860-4090-6-2-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Forged Flat Top Pistons Set 4.090\" Bore: Fits Jeep \/ Dodge \/ Ram (11-24)","description":"\u003ch3\u003eDSS Racing FX Series Forged Flat Top Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6860-4090 \/ 2-6860-4090 \/ 3-6860-4090 \/ K1-6860-4090 \/ K2-6860-4090 \/ K3-6860-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Flat Top Pistons are precision-engineered performance components designed specifically for the Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Crafted to handle the extreme demands of high-performance and forced induction applications, these pistons offer enhanced strength, durability, and reliability over stock components. Ideal for enthusiasts and professional builders looking to maximize power output while maintaining engine longevity, these pistons provide a solid foundation for serious engine builds.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.090\" and a compact flat top design, these pistons optimize combustion efficiency and compression ratios, contributing to improved throttle response and power delivery. Whether upgrading a street machine or building a track-ready powerhouse, the DSS Racing FX Series pistons deliver consistent performance under high stress conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEngineered for high-performance Mopar Hemi applications, these pistons incorporate advanced design elements to meet the rigorous demands of modern muscle cars and trucks:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged 2618 aluminum alloy construction for superior strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eFlat top design with a -1.5cc dish for optimized combustion chamber volume\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" tailored for Gen III 376 Small Block Mopar Hemi engines\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and rod length of 6.2\" for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios approximately 11.2:1 (65cc), 10.11:1 (74cc), and 9.06:1 (85cc) to suit various tuning requirements\u003c\/li\u003e\n\u003cli\u003eDesigned to fit most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat and Trackhawk models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston is forged from premium 2618 aluminum alloy, known for its excellent strength-to-weight ratio and resistance to thermal fatigue. The forging process enhances grain structure, resulting in pistons that withstand the high cylinder pressures and temperatures typical of boosted and high-horsepower engines. The flat top design with a slight dish volume ensures optimal combustion efficiency and helps control detonation under aggressive tuning.\u003c\/p\u003e\u003cp\u003eThe pistons feature precision-machined ring grooves and pin bores to ensure proper ring seal and wrist pin fitment, whether using full-floating or press-fit pins. This attention to detail reduces friction and wear, contributing to longer engine life and consistent performance. The combination of compact compression heights and tailored bore size allows for easy integration into existing engine builds without extensive modifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing FX Series pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Installation requires standard engine assembly procedures, including proper ring end gap setting and wrist pin installation. Depending on the specific engine build and compression ratio selected, minor adjustments to head gasket thickness or deck height may be necessary to achieve desired compression targets.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure optimal piston ring sealing and to maintain engine reliability. These pistons are compatible with existing connecting rods and crankshafts specified in the fitment, making them a straightforward upgrade for performance builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged flat top pistons (quantity as required per engine)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined wrist pin bores\u003c\/li\u003e\n\u003cli\u003eRing grooves sized for high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eInstallation guidelines and specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing FX Series pistons are ideal for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerformance enthusiasts upgrading Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eEngine builders seeking durable forged pistons for forced induction setups\u003c\/li\u003e\n\u003cli\u003eStreet and track applications requiring reliable high-compression components\u003c\/li\u003e\n\u003cli\u003eRebuilds and upgrades aiming to increase power output without sacrificing engine longevity\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000421588,"sku":"1-6860-4090","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000454356,"sku":"2-6860-4090","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381000487124,"sku":"3-6860-4090","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000519892,"sku":"K1-6860-4090","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000552660,"sku":"K2-6860-4090","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000585428,"sku":"K3-6860-4090","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002134_4_8b06203c-a4fc-498b-a66b-10f75ac004ca.webp?v=1771667030"},{"product_id":"6860-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-275","title":"DSS Racing FX Series Gen III Hemi Forged Piston Set 4.100\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Gen III Hemi Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6860-4100 \/ 2-6860-4100 \/ 3-6860-4100 \/ K1-6860-4100 \/ K2-6860-4100 \/ K3-6860-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Gen III Hemi Forged Piston Set is engineered specifically for the demanding performance needs of Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Designed to fit a 4.100\" bore, these pistons offer a perfect balance of strength, durability, and precision for high-output Hellcat applications. Whether you are rebuilding your engine or upgrading for increased power and reliability, this piston set delivers exceptional quality and performance.\u003c\/p\u003e\u003cp\u003eBuilt to accommodate the 378 Small Block Mopar Hemi Gen III platform, these pistons feature a compact 1.275\" compression height and a -1.5cc flat top design, optimizing combustion efficiency and maintaining ideal compression ratios. The set supports both full-floating and press-fit wrist pins, allowing flexibility in assembly preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and performance in mind, the DSS Racing FX Series pistons include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecision forged construction for superior strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.100\" bore sizes common to Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eCompression height of 1.275\" optimized for Gen III Hemi configurations\u003c\/li\u003e\n\u003cli\u003e1.5cc flat top piston crown for improved combustion and power output\u003c\/li\u003e\n\u003cli\u003eWrist pin diameter of .927\" supporting full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm for reliable sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" with a 6.2\" connecting rod length\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.09:1 to 11.23:1\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for the 6.2L Hellcat and Trackhawk engines to ensure perfect fit and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are crafted from high-grade forged aluminum alloy, providing an ideal combination of lightweight design and exceptional strength. Forging enhances the metal’s grain structure, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under extreme boost and high RPM conditions typical of Hellcat powerplants.\u003c\/p\u003e\u003cp\u003eThe flat top piston design with a slight negative volume (-1.5cc) optimizes combustion chamber dynamics, improving throttle response and power delivery. The ring grooves are precision-machined to accommodate high-performance piston rings, ensuring excellent sealing and minimizing blow-by. The wrist pin options allow builders to choose between full-floating or press-fit configurations based on their engine build preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines with a 4.100\" bore. Installation requires standard engine rebuild procedures and is compatible with the factory stroke of 3.578\" and 6.2\" connecting rods. No major modifications are necessary, making these pistons an ideal upgrade for performance rebuilds or engine refreshes.\u003c\/p\u003e\u003cp\u003eProper ring end gap and clearance checks are recommended during assembly to ensure optimal performance and longevity. These pistons are designed to work seamlessly with existing Hellcat components, providing a reliable foundation for high-horsepower builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins compatible with full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston rings (if included per SKU)\u003c\/li\u003e\n\u003cli\u003eInstallation guidelines and specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for enthusiasts and professional builders seeking to upgrade or rebuild their Hellcat or Trackhawk 6.2L engines with high-quality forged components. Whether you are building a street performance machine, a drag racer, or a track-focused vehicle, these pistons provide the strength and reliability needed to handle increased boost, higher RPMs, and aggressive tuning.\u003c\/p\u003e\u003cp\u003eThey are also suitable for those looking to replace worn or damaged factory pistons with a durable, performance-oriented alternative that maintains OEM fitment and compatibility.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000814804,"sku":"1-6860-4100","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000847572,"sku":"2-6860-4100","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381000880340,"sku":"3-6860-4100","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000913108,"sku":"K1-6860-4100","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000945876,"sku":"K2-6860-4100","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000978644,"sku":"K3-6860-4100","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002133_4_4dd61d40-4af3-41dd-8bbb-19c89d4ac511.webp?v=1771667029"},{"product_id":"6857-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Piston Set 4.100\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler, Dodge, Jeep, Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6857-4100 \/ 2-6857-4100 \/ 3-6857-4100 \/ K1-6857-4100 \/ K2-6857-4100 \/ K3-6857-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.2L Hellcat and Trackhawk engines. Designed to replace factory pistons, this set offers enhanced strength and durability to withstand the extreme pressures and temperatures generated by boosted and high-output powertrains.\u003c\/p\u003e\u003cp\u003eIdeal for enthusiasts and professional builders seeking reliable, race-ready components, these forged pistons improve engine longevity and performance consistency. Their precise dimensions and advanced design ensure optimal combustion efficiency and compatibility with stock and aftermarket components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced engineering to meet the demands of modern high-performance Mopar engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 378 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003e4.100\" bore size tailored for most 6.2L Hellcat and Trackhawk models\u003c\/li\u003e\n\u003cli\u003eCompact FX series design with a 1.275\" compression height for improved piston-to-cylinder fit\u003c\/li\u003e\n\u003cli\u003e+4cc dome top for enhanced combustion chamber volume and optimized compression ratios\u003c\/li\u003e\n\u003cli\u003e.945\" wrist pin diameter with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eStroke compatibility at 3.578\" with a 6.2\" connecting rod length for balanced engine dynamics\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes to achieve approximate compression ratios of 12.12:1 (65cc), 10.84:1 (74cc), and 9.64:1 (85cc)\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eManufactured from high-grade forged aluminum alloy, the DSS Racing FX Series pistons deliver exceptional strength-to-weight ratio essential for high-revving, forced induction engines. The forging process enhances grain structure and durability, reducing the risk of cracking or deformation under extreme conditions.\u003c\/p\u003e\u003cp\u003eThe pistons feature a dome top design with carefully calculated volume to optimize combustion efficiency and power output. The wrist pin bore supports both full-floating and press-fit pins, providing flexibility for various engine builds and preferences. Additionally, the ring grooves are precision cut to maintain ring seal integrity and reduce friction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Installation requires standard engine rebuild procedures, including proper honing and cleaning of the cylinder bores. Depending on the wrist pin configuration chosen, minor adjustments may be necessary to accommodate full-floating or press-fit pins.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure correct piston orientation, ring end gap settings, and torque specifications are met for optimal engine performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.100\" bore size\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression height, dome volume, and ring groove dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is perfect for performance enthusiasts, engine builders, and racers upgrading or rebuilding 6.2L Hellcat and Trackhawk engines who require durable, high-quality components capable of handling increased boost levels and aggressive tuning. It is especially suited for applications demanding improved strength and thermal resistance over stock pistons.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000618196,"sku":"1-6857-4100","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000650964,"sku":"2-6857-4100","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381000683732,"sku":"3-6857-4100","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000716500,"sku":"K1-6857-4100","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000749268,"sku":"K2-6857-4100","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381000782036,"sku":"K3-6857-4100","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002132_4_b07616cc-9f1f-4178-83e0-12bea77659ba.webp?v=1771667029"},{"product_id":"6852-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-10cc-dish-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Piston Set 4.100\" Bore: Fits Jeep \/ Dodge \/ Ram (Hellcat \u0026 Trackhawk)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6852-4100 \/ 2-6852-4100 \/ 3-6852-4100 \/ K1-6852-4100 \/ K2-6852-4100 \/ K3-6852-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.2L Gen III Hemi engines found in many Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Designed to handle high-performance demands, these pistons offer exceptional strength and durability for enthusiasts looking to upgrade their engine’s internals. Whether you are building a street performance engine or a track-ready powerhouse, this piston set provides reliable, precision-crafted components to improve engine efficiency and longevity.\u003c\/p\u003e\u003cp\u003eWith a 4.100\" bore size and a compact dish top design, these pistons are optimized for a range of compression ratios, making them versatile for various build goals. The set is ideal for those seeking to maintain factory-like dimensions while enhancing the engine’s ability to withstand increased power and boost levels.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and manufacturing techniques to ensure peak performance and reliability:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.2L Gen III Hemi engines, including Hellcat and Trackhawk models\u003c\/li\u003e\n\u003cli\u003e4.100\" bore size tailored for 378 Small Block Mopar Hemi applications\u003c\/li\u003e\n\u003cli\u003eCompact 10cc dish top for optimized combustion chamber volume\u003c\/li\u003e\n\u003cli\u003ePin diameter of .945\" available in full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.578\" stroke and 6.2\" connecting rod length\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression heights (1.275\" comp height) to suit different engine builds\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios ranging from 8.48 to 10.26 depending on combustion chamber volume\u003c\/li\u003e\n\u003cli\u003ePrecision forged construction for superior strength and heat resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing’s FX Series pistons are forged from high-grade aluminum alloy, providing an excellent balance of lightweight design and structural integrity. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under extreme heat and pressure. The pistons feature a compact dish top design with a -10cc volume to optimize combustion efficiency and reduce detonation risk.\u003c\/p\u003e\u003cp\u003eThe pin bore is engineered for either full-floating or press-fit wrist pins, allowing builders to select the best option for their application. Ring grooves are precision-machined to accommodate high-performance piston rings, ensuring superior sealing and oil control. Overall, the design focuses on durability and compatibility with factory components, making these pistons a reliable upgrade for high-output 6.2L Hemi engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines with a 4.100\" bore. Installation requires standard engine assembly procedures and may involve balancing and blueprinting depending on the build. No major modifications are typically necessary, but professional installation is recommended to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons sized for 4.100\" bore\u003c\/li\u003e\n\u003cli\u003eWrist pin options: full-floating or press-fit (depending on SKU)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves ready for high-performance piston rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts and engine builders upgrading or rebuilding 6.2L Gen III Hemi engines in Hellcat and Trackhawk vehicles. It suits applications ranging from street performance to drag racing and high-boost forced induction setups, providing enhanced durability and reliability under increased power demands.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001011412,"sku":"1-6852-4100","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001044180,"sku":"2-6852-4100","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381001076948,"sku":"3-6852-4100","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001109716,"sku":"K1-6852-4100","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001142484,"sku":"K2-6852-4100","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001175252,"sku":"K3-6852-4100","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002131_4_d3770735-005f-433a-81dc-039a4d80a1c4.webp?v=1771667029"},{"product_id":"6852-4125-6-2-small-block-mopar-hemi-gen-iii-fx-series-10cc-dish-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Piston Set 4.125\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram (11-24)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6852-4125 \/ 2-6852-4125 \/ 3-6852-4125 \/ K1-6852-4125 \/ K2-6852-4125 \/ K3-6852-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.2L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Designed to handle high-performance demands, these pistons offer a reliable upgrade for enthusiasts seeking enhanced durability and efficiency. Whether you are rebuilding your engine or upgrading for increased power, this piston set delivers precision and strength to support aggressive driving and track use.\u003c\/p\u003e\u003cp\u003eWith a 4.125\" bore size and a compact dish top design, these pistons optimize combustion chamber volume and compression ratios, making them ideal for performance builds that require both reliability and power. The FX Series pistons are a perfect fit for small block Mopar Hemi Gen III engines, providing a balance of lightweight construction and robust strength.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced engineering to meet the rigorous demands of high-output Hemi engines. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e4.125\" bore diameter tailored for 6.2L Gen III Hemi applications\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" for optimal piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003e10cc dish top design to control compression ratios and prevent detonation\u003c\/li\u003e\n\u003cli\u003e.945\" wrist pin diameter with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for superior ring sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke crankshafts and 6.2\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes to adjust compression ratio: 65cc (-10.37), 74cc (-9.46), and 85cc (-8.56)\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures consistent tolerances and fitment\u003c\/li\u003e\n\u003cli\u003eForged from high-strength alloy for enhanced durability under extreme conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, providing an excellent strength-to-weight ratio essential for high-performance engines. The forging process refines the grain structure of the metal, resulting in pistons that resist cracking, scuffing, and thermal fatigue. The pistons feature a carefully engineered dish top to optimize combustion chamber shape and compression ratio, reducing the risk of detonation while maximizing power output.\u003c\/p\u003e\u003cp\u003eEach piston is CNC-machined to exact specifications, ensuring perfect ring groove dimensions and wrist pin fitment. The option for full-floating or press-fit wrist pins allows for customization based on engine build preferences. The ring grooves are designed to accommodate high-performance piston rings, maintaining excellent sealing under high cylinder pressures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk Gen III Hemi engines. Installation requires standard engine rebuild procedures, including proper honing of cylinder walls and precise ring end gap adjustments. The pistons are compatible with 3.578\" stroke crankshafts and 6.2\" connecting rods commonly used in these engines.\u003c\/p\u003e\u003cp\u003eDepending on the chosen dish volume, the compression ratio can be tailored to suit naturally aspirated or forced induction setups. Professional installation is recommended to ensure optimal engine performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.125\" bore diameter\u003c\/li\u003e\n\u003cli\u003eWrist pins (.945\") with options for full-floating or press-fit configuration\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston rings grooves (1.2\/1.2\/3mm)\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding their 6.2L Gen III Hemi engines. It suits applications ranging from street performance to track and drag racing, especially where increased durability and compression tuning are required. The FX Series pistons provide a reliable foundation for high-horsepower builds and forced induction setups.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001208020,"sku":"1-6852-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001240788,"sku":"2-6852-4125","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381001273556,"sku":"3-6852-4125","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001306324,"sku":"K1-6852-4125","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001339092,"sku":"K2-6852-4125","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001371860,"sku":"K3-6852-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002130_4_1f51ecee-586e-478c-8d09-59b513cb89ae.webp?v=1771667028"},{"product_id":"6857-4090-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged +4cc Dome Top Pistons: Fits Jeep Grand Cherokee \/ Dodge Durango \/ Ram","description":"\u003ch3\u003eDSS Racing FX Series Forged +4cc Dome Top Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6857-4090 \/ 2-6857-4090 \/ 3-6857-4090 \/ K1-6857-4090 \/ K2-6857-4090 \/ K3-6857-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged +4cc Dome Top Pistons are precision-engineered performance components designed specifically for Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Crafted to enhance combustion efficiency and durability, these pistons are ideal for enthusiasts and professional builders seeking to maximize power output and reliability in high-performance applications.\u003c\/p\u003e\u003cp\u003eFeaturing a +4cc dome top design, these pistons increase compression ratios while maintaining optimal combustion chamber shape. They are compatible with the 376 Small Block Mopar Hemi Gen III platform and engineered to fit a 4.090\" bore, making them a direct fit for most Hellcat engines without extensive modifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and high-quality materials, the DSS Racing FX Series pistons offer a range of features that support enhanced engine performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and durability under extreme conditions\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve combustion efficiency\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.090\" bore size, fitting most Chrysler\/Dodge\/Jeep\/Ram 6.2L Hellcat and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" for precise piston-to-deck clearance and optimal quench\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2\/1.2\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003ePin diameter of .945\" available in full-floating or press-fit options for versatility\u003c\/li\u003e\n\u003cli\u003eDesigned for use with 6.2\" connecting rods and a 3.578\" stroke\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression volume options (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.59:1 to 12.06:1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston is forged from premium-grade aluminum alloy, ensuring a lightweight yet robust component capable of withstanding the high pressures and temperatures typical of forced induction Hellcat engines. The dome top shape is precisely machined to optimize combustion chamber dynamics, promoting efficient flame propagation and reducing the risk of detonation.\u003c\/p\u003e\u003cp\u003eThe pistons feature carefully engineered ring grooves and pin bosses to maintain ring seal integrity and reduce friction. The option for full-floating or press-fit wrist pins allows builders to select the best fitment for their specific engine build and performance goals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most 6.2L Hellcat and Trackhawk engines, requiring minimal modifications during installation. Their compatibility with the 4.090\" bore and standard stroke and rod lengths ensures a straightforward swap for performance upgrades or engine rebuilds.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure proper piston ring end gap, pin fitment, and torque specifications are met for optimal engine reliability and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of four DSS Racing FX Series Forged +4cc Dome Top Pistons\u003c\/li\u003e\n\u003cli\u003eChoice of full-floating or press-fit wrist pins (depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for ring groove dimensions and piston geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are perfect for performance enthusiasts, engine builders, and racers looking to upgrade their Hellcat or Trackhawk engines for increased compression and durability. They are especially suited for forced induction setups, street performance builds, and track applications where reliability under high boost and RPM is critical.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001404628,"sku":"1-6857-4090","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001437396,"sku":"2-6857-4090","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381001470164,"sku":"3-6857-4090","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001502932,"sku":"K1-6857-4090","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001535700,"sku":"K2-6857-4090","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001568468,"sku":"K3-6857-4090","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002129_4_b0a85011-0ee9-48f1-ba50-83a167ee11c5.webp?v=1771667027"},{"product_id":"6850-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Flat Top Pistons Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram (11-24)","description":"\u003ch3\u003eDSS Racing FX Series Forged Flat Top Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6850-4100 \/ 2-6850-4100 \/ 3-6850-4100 \/ K1-6850-4100 \/ K2-6850-4100 \/ K3-6850-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Flat Top Pistons are engineered specifically for the 6.2L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. Designed to replace factory pistons, these forged pistons offer enhanced strength and durability for high-performance applications. Whether you are building a street machine or a track-ready powerhouse, these pistons provide the reliability and precision needed to handle increased power and boost levels.\u003c\/p\u003e\u003cp\u003eWith a flat top design and a compact combustion chamber volume, these pistons help optimize compression ratios for improved combustion efficiency and power delivery. They are ideal for enthusiasts seeking to upgrade their engine internals for better performance and longevity under demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons combine advanced engineering with premium materials to deliver superior performance and durability. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for maximum strength and resistance to high stress\u003c\/li\u003e\n\u003cli\u003eFlat top design with a -1.5cc dish for optimized combustion chamber volume\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" for precise piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .945\" available in full-floating or press-fit options\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.2\" connecting rods typical of the 6.2L Gen III Hemi\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.09:1 to 11.23:1\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances the grain structure of the metal, resulting in pistons that withstand extreme combustion pressures and temperatures without deformation.\u003c\/p\u003e\u003cp\u003eThe flat top design reduces quench distance and promotes efficient flame propagation, contributing to improved power output and fuel efficiency. The pistons are engineered to fit the 378 Small Block Mopar Hemi Gen III architecture, ensuring seamless integration with stock or upgraded components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are designed as direct replacements for factory pistons in most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Installation requires standard engine rebuild procedures, including proper ring end gap setting and clearance checks. Depending on the pin type selected—full-floating or press-fit—appropriate wrist pin installation techniques should be followed.\u003c\/p\u003e\u003cp\u003eThese pistons accommodate the factory 3.578\" stroke crankshaft and 6.2\" connecting rods, making them suitable for both stock and modified bottom ends. No major modifications to the engine block or cylinder heads are typically necessary, but professional installation is recommended to ensure optimal performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of 8 DSS Racing FX Series Forged Flat Top Pistons\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit depending on SKU)\u003c\/li\u003e\n\u003cli\u003ePiston rings compatible with 1.2\/1.2\/3mm groove dimensions\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are perfect for performance enthusiasts, engine builders, and racers upgrading their 6.2L Gen III Hemi engines. They are especially suited for applications involving forced induction, high compression builds, and extended durability requirements. Whether upgrading a Hellcat, Trackhawk, or other compatible Mopar 6.2L platforms, these pistons provide a solid foundation for increased horsepower and torque.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001601236,"sku":"1-6850-4100","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001634004,"sku":"2-6850-4100","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381001666772,"sku":"3-6850-4100","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001699540,"sku":"K1-6850-4100","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001732308,"sku":"K2-6850-4100","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001765076,"sku":"K3-6850-4100","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002128_4_aed904d7-d185-441d-a7c7-8a991a947c45.webp?v=1771667027"},{"product_id":"6850-4125-6-2-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Flat Top Piston Set 4.125\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Flat Top Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6850-4125 \/ 2-6850-4125 \/ 3-6850-4125 \/ K1-6850-4125 \/ K2-6850-4125 \/ K3-6850-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Flat Top Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Designed to handle the extreme demands of these supercharged HEMI V8 powerplants, these pistons provide enhanced strength, durability, and precision fitment. Whether you are building a race engine or upgrading for improved reliability and power, this piston set offers a direct replacement solution that meets the rigorous standards of modern performance builds.\u003c\/p\u003e\u003cp\u003eThese pistons are ideal for enthusiasts and professional builders seeking to maximize engine efficiency and longevity under high boost and high RPM conditions. Their forged construction and optimized design ensure consistent performance and resistance to wear, making them a trusted choice for serious Hellcat engine upgrades.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons incorporate advanced engineering and materials to deliver superior performance and reliability. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecision forged construction for maximum strength and durability\u003c\/li\u003e\n\u003cli\u003eFlat top design with -1.5cc dish volume for optimized combustion chamber dynamics\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" for accurate piston-to-head clearance and compression ratio control\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003ePin diameter of .945\" with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eCompatible with 6.2\" connecting rods and 3.578\" stroke crankshafts\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.2:1 to 11.36:1\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the 383 Small Block Mopar HEMI Gen III platform\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the FX Series is crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances grain structure and mechanical properties, ensuring the pistons withstand the intense pressures and temperatures generated by supercharged Hellcat engines. The flat top design promotes efficient combustion and power delivery, while the precise machining guarantees tight tolerances for optimal ring seal and minimal friction.\u003c\/p\u003e\u003cp\u003eThe pistons feature robust ring lands and reinforced pin bosses to endure the stresses of high RPM operation. The option for full-floating or press-fit wrist pins allows builders to customize installation based on engine requirements and preferences. Overall, the design reflects a focus on durability, performance, and compatibility with factory and aftermarket components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is engineered as a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines, simplifying installation without the need for extensive modifications. The pistons are compatible with the factory 4.125\" bore size and designed to work seamlessly with OEM or aftermarket connecting rods and crankshafts matching the specified dimensions.\u003c\/p\u003e\u003cp\u003eInstallation should be performed by experienced engine builders or technicians familiar with high-performance engine assembly. Proper ring end gap setting, piston orientation, and clearance checks are essential to ensure reliable operation and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged flat top pistons sized for 4.125\" bore\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratios and piston dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, professional engine builders, and racers upgrading or rebuilding 6.2L Hellcat and Trackhawk engines. It suits applications ranging from street performance to track use where enhanced strength, durability, and precise compression control are critical. Whether building a high-boost supercharged engine or a naturally aspirated race motor, these pistons provide a reliable foundation for increased power and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001797844,"sku":"1-6850-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381001830612,"sku":"2-6850-4125","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381001863380,"sku":"3-6850-4125","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001896148,"sku":"K1-6850-4125","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001928916,"sku":"K2-6850-4125","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381001961684,"sku":"K3-6850-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002127_4_991ece4d-043e-4507-9aad-841f8657c028.webp?v=1771667027"},{"product_id":"6852-4090-6-2-small-block-mopar-hemi-gen-iii-fx-series-10cc-dish-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Pistons Set 4.090\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram (11-24)","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6852-4090 \/ 2-6852-4090 \/ 3-6852-4090 \/ K1-6852-4090 \/ K2-6852-4090 \/ K3-6852-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.2L Gen III Mopar Hemi engines found in Chrysler, Dodge, Jeep, and Ram Hellcat and Trackhawk models. These pistons offer a perfect balance of strength, durability, and lightweight construction, making them ideal for enthusiasts and racers seeking to maximize engine reliability and power output under demanding conditions.\u003c\/p\u003e\u003cp\u003eCrafted to exacting specifications, the FX Series pistons feature a 4.090\" bore size and a compact 1.275\" compression height, ensuring compatibility with the 376 Small Block Mopar Hemi Gen III platform. Their forged construction and optimized dish volume provide enhanced combustion efficiency and improved compression ratios, supporting both street performance and track applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEngineered for high-performance Mopar applications, these pistons incorporate advanced design elements to deliver superior results:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from premium billet aluminum for exceptional strength and heat resistance\u003c\/li\u003e\n\u003cli\u003e4.090\" bore diameter tailored for 6.2L Gen III Mopar Hemi engines\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" for precise piston-to-head clearance and optimal combustion chamber volume\u003c\/li\u003e\n\u003cli\u003e10cc dish top design to control compression and prevent detonation\u003c\/li\u003e\n\u003cli\u003e.945\" pin diameter with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.2\" connecting rods for balanced engine dynamics\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to fine-tune compression ratios from 10.22:1 to 8.44:1\u003c\/li\u003e\n\u003cli\u003eDesigned to withstand the rigors of high-boost, forced induction, and naturally aspirated setups\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from high-grade aluminum alloy, providing an optimal combination of lightweight properties and structural integrity. This forging process enhances grain structure and mechanical strength, allowing the pistons to endure extreme combustion pressures and temperatures common in Hellcat and Trackhawk engines.\u003c\/p\u003e\u003cp\u003eEach piston features a carefully engineered dish top to manage compression ratios and combustion characteristics, reducing the risk of knock while maintaining power output. The pin bore is precision-machined to accept either full-floating or press-fit wrist pins, offering flexibility depending on engine build preferences. Additionally, the ring grooves are designed to securely hold high-performance rings, ensuring excellent sealing and reduced blow-by.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are direct-fit replacements for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines equipped with the Gen III Mopar Hemi platform. Installation requires standard engine disassembly and piston removal procedures. Due to the precision manufacturing and exact bore sizing, minimal modifications are necessary, but professional installation and proper engine blueprinting are recommended to achieve optimal performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged DSS Racing FX Series pistons (quantity as required for engine)\u003c\/li\u003e\n\u003cli\u003eChoice of wrist pin configuration: full-floating or press-fit\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are ideal for performance enthusiasts, professional racers, and engine builders upgrading or rebuilding 6.2L Hellcat and Trackhawk engines. They are particularly suited for applications demanding increased durability under high horsepower, forced induction, and track conditions, while maintaining street drivability and reliability.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002256596,"sku":"1-6852-4090","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002289364,"sku":"2-6852-4090","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381002322132,"sku":"3-6852-4090","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002354900,"sku":"K1-6852-4090","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002387668,"sku":"K2-6852-4090","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002420436,"sku":"K3-6852-4090","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002126_4_c1f7bc4b-1ba2-4561-94e5-cb61e98b8480.webp?v=1771667027"},{"product_id":"6850-4090-6-2-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Pistons 4.090\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; Trackhawk Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6850-4090 \/ 2-6850-4090 \/ 3-6850-4090 \/ K1-6850-4090 \/ K2-6850-4090 \/ K3-6850-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered components designed specifically for the Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Crafted to meet the demanding requirements of high-performance applications, these pistons provide enhanced strength, durability, and reliability under extreme conditions. Ideal for enthusiasts and professional builders looking to upgrade or rebuild their Hellcat engines, these pistons support increased power output while maintaining engine efficiency and longevity.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.090 inches and a compact flat-top design, these pistons are optimized for performance builds that require precise combustion chamber control and improved compression ratios. Whether you’re building a street machine or a track-ready powerhouse, the DSS Racing FX Series pistons deliver consistent performance and durability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and manufacturing techniques, the DSS Racing FX Series Forged Pistons offer a range of features that enhance engine performance and reliability:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from high-strength aluminum alloy for superior durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eFlat-top piston design with -1.5cc dish volume for optimized combustion and compression\u003c\/li\u003e\n\u003cli\u003ePin diameter of .945\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eComp height of 1.275\" to ensure proper deck clearance and piston-to-valve clearance\u003c\/li\u003e\n\u003cli\u003eCompatible with 6.2\" connecting rods and 3.578\" stroke crankshafts typical of the 376 Small Block Mopar Hemi Gen III\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.06:1 to 11.2:1\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining for tight tolerances and consistent fitment\u003c\/li\u003e\n\u003cli\u003eEngineered for both street and track applications, supporting high horsepower and boost levels\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, providing an excellent balance of strength and lightweight properties. Forging enhances the grain structure of the metal, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under high cylinder pressures and temperatures.\u003c\/p\u003e\u003cp\u003eThe flat-top design with a slight dish volume (-1.5cc) optimizes the combustion chamber shape for efficient flame propagation and power delivery. The pistons feature carefully engineered ring grooves to maintain ring seal and reduce friction, while the pin bore supports either full-floating or press-fit wrist pins, allowing builders to select the best option for their application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed to fit most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines, specifically the 376 Small Block Mopar Hemi Gen III platform. Installation requires standard engine assembly procedures, including proper ring end gap setting, wrist pin installation, and piston orientation. Due to the precision manufacturing and exact bore size of 4.090\", minimal machining adjustments are typically needed when used with compatible cylinder blocks.\u003c\/p\u003e\u003cp\u003eBuilders should verify piston-to-valve clearance and deck height compatibility based on their specific engine build and compression ratio goals. DSS Racing pistons are suitable for both full rebuilds and performance upgrades, providing a reliable foundation for high-output Hellcat engines.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of four DSS Racing FX Series Forged Pistons (4.090\" bore)\u003c\/li\u003e\n\u003cli\u003eWrist pin compatibility for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for ring groove sizes and piston dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are ideal for automotive enthusiasts, engine builders, and racers who demand high strength and reliability from their Hellcat or Trackhawk 6.2L engines. Whether upgrading for forced induction, high compression naturally aspirated builds, or track-focused applications, the DSS Racing FX Series pistons provide the durability and performance needed to handle increased power levels and aggressive driving conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002846420,"sku":"1-6850-4090","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002879188,"sku":"2-6850-4090","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381002911956,"sku":"3-6850-4090","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002944724,"sku":"K1-6850-4090","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002977492,"sku":"K2-6850-4090","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003010260,"sku":"K3-6850-4090","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002125_4_fa726f80-f36c-4747-8fb8-98a692ba2ec3.webp?v=1771667027"},{"product_id":"6847-4100-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set: Fits Dodge \/ Chrysler \/ Jeep 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4100D \/ 2-6847-4100D \/ 3-6847-4100D \/ K1-6847-4100D \/ K2-6847-4100D \/ K3-6847-4100D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, delivering enhanced performance and reliability. Designed to fit most 6.1L SRT8 models, these pistons are ideal for enthusiasts seeking to upgrade their engine’s durability and compression ratio for improved power output.\u003c\/p\u003e\u003cp\u003eBuilt with precision and attention to detail, this piston set offers a +4cc dome top design that increases the compression ratio, optimizing combustion efficiency. Whether you are rebuilding your engine or upgrading for higher performance applications, these pistons provide a solid foundation for sustained power and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and materials to meet the demands of high-performance Mopar Hemi engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 378 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design for increased compression and power\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches for precise piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927 inches, available in full-floating or press-fit options\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring\u003c\/li\u003e\n\u003cli\u003eOptimized for a 4.100\" bore and 3.578\" stroke\u003c\/li\u003e\n\u003cli\u003eRod length compatibility of 6.243 inches\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios vary by combustion chamber size: 65cc (12.12:1), 74cc (10.84:1), 85cc (9.64:1)\u003c\/li\u003e\n\u003cli\u003eDurable forged construction for enhanced strength and heat resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing’s FX Series pistons are crafted from high-quality forged aluminum alloy, providing superior strength and thermal conductivity compared to cast pistons. The dome top design increases the compression ratio, improving combustion efficiency and power output without compromising reliability.\u003c\/p\u003e\u003cp\u003eThe pistons feature precision-machined ring grooves and pin bores to ensure optimal ring seal and wrist pin fitment. The option for full-floating or press-fit pins allows customization based on engine build preferences. This meticulous engineering supports high RPM operation and aggressive driving conditions typical of SRT8 performance applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines with a 4.100\" bore. Installation requires standard engine rebuild procedures, including proper honing and cleaning of the cylinder bores. The choice between full-floating or press-fit wrist pins should be matched to your engine’s specifications and performance goals.\u003c\/p\u003e\u003cp\u003eDue to the increased compression ratio, it is recommended to verify compatibility with your engine’s fuel and tuning setup to avoid detonation. Professional installation is advised to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit, depending on selected option)\u003c\/li\u003e\n\u003cli\u003eCirclips or retaining hardware for wrist pins\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is perfect for Mopar enthusiasts and professional engine builders looking to upgrade or rebuild their 6.1L SRT8 engines. It suits applications ranging from street performance to track use where increased compression and durability are desired. Ideal for those aiming to extract more power while maintaining engine reliability under demanding conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002453204,"sku":"1-6847-4100D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002485972,"sku":"2-6847-4100D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381002518740,"sku":"3-6847-4100D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002551508,"sku":"K1-6847-4100D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002584276,"sku":"K2-6847-4100D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002617044,"sku":"K3-6847-4100D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002124_4_97df2439-b3d5-488e-bd39-90efca90c391.webp?v=1771667026"},{"product_id":"6847-4125-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set 4.125\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4125C \/ 2-6847-4125C \/ 3-6847-4125C \/ K1-6847-4125C \/ K2-6847-4125C \/ K3-6847-4125C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for the 6.4L 392 HEMI engines found in Chrysler, Dodge, Jeep, and Ram vehicles. Designed to enhance performance and durability, these pistons are ideal for enthusiasts looking to upgrade their engine’s strength and efficiency. Featuring a +4cc dome top design, these pistons help optimize compression ratios for improved combustion and power delivery.\u003c\/p\u003e\u003cp\u003eBuilt to meet the demands of high-performance applications, this piston set is perfect for street performance, racing, or heavy-duty use. Whether you are rebuilding your 6.4L HEMI or seeking a reliable upgrade, DSS Racing’s FX Series pistons offer a precision fit and robust construction to support your engine’s potential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and materials to ensure maximum reliability and performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve combustion efficiency\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.125\" bore size for precise fitment in 6.4L 392 HEMI engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and resistance to high stress\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.720\" stroke and 6.2\" connecting rods, matching factory specifications\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 12.68:1 to 10.08:1\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for optimal piston-to-head clearance and combustion chamber compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances the metal’s grain structure, resulting in pistons that withstand extreme combustion pressures and temperatures without deformation.\u003c\/p\u003e\u003cp\u003eThe dome top design increases the piston’s compression volume, allowing for improved power output while maintaining engine reliability. Precision machining ensures tight tolerances for bore size, pin fitment, and ring grooves, guaranteeing smooth operation and reduced friction within the cylinder bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines with a 4.125\" bore. Installation requires standard engine rebuild procedures, including proper ring end gap setting and piston pin installation. Depending on your engine build, you can select either full-floating or press-fit wrist pins to match your application.\u003c\/p\u003e\u003cp\u003eDue to the +4cc dome volume, it is important to verify piston-to-valve clearance and compression ratio compatibility with your cylinder heads and camshaft setup. Professional installation is recommended to ensure optimal engine performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with +4cc dome tops (quantity as per kit selection)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit depending on chosen option)\u003c\/li\u003e\n\u003cli\u003ePiston rings compatible with 1.2\/1.2\/3mm groove dimensions (may be sold separately)\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for automotive enthusiasts and professional builders upgrading or rebuilding 6.4L 392 HEMI engines seeking enhanced durability and performance. It suits street performance vehicles, drag racing, road racing, and other high-stress applications where forged components are essential for reliability and power gains.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002649812,"sku":"1-6847-4125C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002682580,"sku":"2-6847-4125C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381002715348,"sku":"3-6847-4125C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002748116,"sku":"K1-6847-4125C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002780884,"sku":"K2-6847-4125C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381002813652,"sku":"K3-6847-4125C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002123_4_9d1e67f5-11e6-4b4c-95f6-b25d84045461.webp?v=1771667025"},{"product_id":"6847-4125-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Gen III Mopar Hemi\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4125D \/ 2-6847-4125D \/ 3-6847-4125D \/ K1-6847-4125D \/ K2-6847-4125D \/ K3-6847-4125D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for the 6.1L Gen III Mopar Hemi engine, commonly found in Chrysler, Dodge, Jeep, and Ram SRT8 models. Designed to enhance engine performance and durability, these pistons offer a precise combination of lightweight construction and strength to handle high-stress conditions. Ideal for enthusiasts and professional builders seeking reliable, high-quality components for street or track applications.\u003c\/p\u003e\u003cp\u003eWith a +4cc dome top design, these pistons increase compression ratios, delivering improved combustion efficiency and power potential. They are compatible with both full-floating and press-fit wrist pins, providing flexibility for various engine builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements to optimize performance and reliability:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top for increased compression and power output\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability under high load\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" to maintain proper piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit wrist pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for 3.578\" stroke and 6.243\" connecting rods typical of 6.1L Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.74:1 to 12.24:1\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent fitment and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eManufactured from high-grade forged aluminum alloy, these pistons deliver an optimal balance of lightweight design and exceptional strength. The forging process refines the metal grain structure, enhancing fatigue resistance and thermal conductivity. The dome top shape is engineered to improve combustion chamber dynamics, promoting efficient flame propagation and power delivery.\u003c\/p\u003e\u003cp\u003eEach piston features carefully machined ring grooves and pin bores to ensure tight tolerances and reliable sealing. The option for full-floating or press-fit wrist pins allows builders to customize assembly based on application requirements and performance goals.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for the 6.1L Gen III Mopar Hemi engines found in many Chrysler, Dodge, Jeep, and Ram SRT8 vehicles. Installation requires standard engine assembly procedures, with attention to proper ring end gap and piston orientation. No major modifications are typically necessary, making them suitable for both rebuilds and performance upgrades.\u003c\/p\u003e\u003cp\u003eConsult your engine builder or service manual for specific torque specs and clearances to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eCompatible wrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston rings matching groove specifications\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical support documentation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers who demand increased compression and durability from their 6.1L Gen III Mopar Hemi engines. Whether upgrading a street car for spirited driving or building a track-focused machine, these pistons provide a solid foundation for enhanced power and reliability.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003239636,"sku":"1-6847-4125D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003272404,"sku":"2-6847-4125D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381003305172,"sku":"3-6847-4125D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003337940,"sku":"K1-6847-4125D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003370708,"sku":"K2-6847-4125D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003403476,"sku":"K3-6847-4125D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002122_4_462aa115-9d1e-424c-bb2f-e4e748ee5094.webp?v=1771667025"},{"product_id":"6847-4125-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing Gen III Hemi FX Series Forged Piston Set 6.1L: Fits Chrysler \/ Dodge \/ Jeep \/ Ram (05-10)","description":"\u003ch3\u003eDSS Racing Gen III Hemi FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4125 \/ 2-6847-4125 \/ 3-6847-4125 \/ K1-6847-4125 \/ K2-6847-4125 \/ K3-6847-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing Gen III Hemi FX Series Forged Piston Set is engineered specifically for the 6.1L SRT8 engines found in various Chrysler, Dodge, Jeep, and Ram models. Designed to meet the demanding needs of performance enthusiasts and professional builders, these pistons offer exceptional strength and durability under high-stress conditions. Whether you are upgrading your engine for increased power or rebuilding for reliability, this piston set delivers precision fitment and enhanced combustion efficiency.\u003c\/p\u003e\u003cp\u003eBuilt to accommodate the 383 Small Block Mopar Hemi Gen III platform, these pistons feature a +4cc dome top design that optimizes compression ratios for improved power output. Their comp height of 1.21 inches and pin diameter of .927 inches ensure compatibility with full-floating or press-fit wrist pins, providing flexibility for various engine builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and manufacturing techniques to maximize performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003e+4cc dome top to increase compression ratio and combustion efficiency\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches tailored for Gen III Hemi applications\u003c\/li\u003e\n\u003cli\u003e.927-inch wrist pin diameter compatible with full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003ePrecision ring grooves sized at 1.2mm \/ 1.2mm \/ 3mm for optimal ring seal\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.578-inch stroke and 6.243-inch connecting rod length\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to suit different compression ratio needs\u003c\/li\u003e\n\u003cli\u003eCompatible with 6.1L SRT8 engines from Chrysler, Dodge, Jeep, and Ram\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the DSS Racing FX Series is forged from high-grade aluminum alloy, providing an excellent balance of lightweight construction and structural integrity. The forging process enhances grain flow and material density, resulting in pistons that withstand extreme heat and pressure typical of high-performance and forced induction engines.\u003c\/p\u003e\u003cp\u003eThe dome top design with a +4cc volume increases the effective compression ratio, improving throttle response and power delivery without compromising reliability. The pistons are engineered with precise ring grooves to maintain optimal ring seal and reduce blow-by, contributing to improved engine efficiency and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for the 6.1L SRT8 Gen III Hemi engines found in Chrysler, Dodge, Jeep, and Ram vehicles. Installation requires standard engine rebuild procedures and may involve balancing and blueprinting for optimal performance. The pistons accommodate either full-floating or press-fit wrist pins, allowing flexibility depending on your build preferences.\u003c\/p\u003e\u003cp\u003eDue to their precise dimensions and compatibility with stock components, minimal modifications are necessary, making them an excellent choice for both performance upgrades and reliable rebuilds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons for 6.1L Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eCompatible with full-floating or press-fit wrist pins\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves\u003c\/li\u003e\n\u003cli\u003eMultiple combustion chamber volume options (65cc, 74cc, 85cc)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePerformance enthusiasts upgrading their 6.1L SRT8 engines\u003c\/li\u003e\n\u003cli\u003eEngine builders seeking durable, high-strength pistons for street or track use\u003c\/li\u003e\n\u003cli\u003eRebuilders requiring reliable, OEM-compatible pistons for Chrysler, Dodge, Jeep, and Ram Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eApplications demanding improved compression ratios and combustion efficiency\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003436244,"sku":"1-6847-4125","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003469012,"sku":"2-6847-4125","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381003501780,"sku":"3-6847-4125","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003534548,"sku":"K1-6847-4125","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003567316,"sku":"K2-6847-4125","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003600084,"sku":"K3-6847-4125","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002121_4_da426128-26ec-4d7c-9f59-9bd549dd2218.webp?v=1771667025"},{"product_id":"6847-4090-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Pistons Set 6.1L Gen III Mopar Hemi: Fits Chrysler \/ Dodge \/ Jeep (All)","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4090D \/ 2-6847-4090D \/ 3-6847-4090D \/ K1-6847-4090D \/ K2-6847-4090D \/ K3-6847-4090D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.1L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram SRT8 models. These pistons offer a perfect balance of strength, durability, and lightweight construction, making them an ideal upgrade for enthusiasts seeking enhanced engine reliability and power potential.\u003c\/p\u003e\u003cp\u003eBuilt to withstand the rigors of high-performance applications, the FX Series pistons deliver improved combustion efficiency and thermal management. Whether you are building a street performance engine or a track-focused machine, these pistons provide the foundation for consistent, high-output operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEngineered with advanced design and manufacturing techniques, the DSS Racing FX Series Forged Pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from high-strength aluminum alloy for superior durability and reduced weight\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize compression and combustion chamber shape\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise piston-to-deck clearance and performance tuning\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.243\" connecting rods for exact fitment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.59:1 up to 12.06:1\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the 376 cubic inch Small Block Mopar Gen III Hemi platform\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are crafted from premium forged aluminum alloy, providing an excellent strength-to-weight ratio essential for high-revving engines. The forging process enhances grain structure and mechanical properties, resulting in pistons that resist cracking and deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe dome top design with a +4cc volume improves combustion efficiency by promoting better flame propagation and reducing detonation risk. Precision machining ensures tight tolerances for optimal ring sealing and minimal friction. The option for full-floating or press-fit wrist pins allows customization based on engine build preferences and durability requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models equipped with the Gen III Mopar Hemi engine. Installation requires standard engine assembly procedures and may involve balancing and blueprinting for best results. The pistons are compatible with factory stroke and rod lengths, ensuring a straightforward swap in performance rebuilds or upgrades.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to verify clearances and ring end gaps, especially when selecting different combustion chamber volumes to adjust compression ratios.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eRing grooves pre-machined for high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are ideal for automotive enthusiasts, engine builders, and racers who demand reliable, high-performance components for their 6.1L Mopar Hemi engines. Whether upgrading a street machine, building a drag racer, or preparing a track car, these pistons provide the strength and precision needed to maximize power and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003043028,"sku":"1-6847-4090D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003075796,"sku":"2-6847-4090D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381003108564,"sku":"3-6847-4090D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003141332,"sku":"K1-6847-4090D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003174100,"sku":"K2-6847-4090D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003206868,"sku":"K3-6847-4090D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002120_4_cfacadc2-7538-40d7-8b10-dbbe491ec27b.webp?v=1771667025"},{"product_id":"6847-4100-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set 4.100\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4100C \/ 2-6847-4100C \/ 3-6847-4100C \/ K1-6847-4100C \/ K2-6847-4100C \/ K3-6847-4100C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L 392 HEMI engine. Designed to replace factory pistons, this set offers enhanced durability and improved combustion efficiency, making it an ideal upgrade for enthusiasts seeking to boost engine power and reliability.\u003c\/p\u003e\u003cp\u003eThese pistons are crafted to accommodate the 393 Small Block Mopar HEMI Gen III platform, featuring a +4cc dome top design that optimizes compression ratios for increased performance. Whether you are building a street performance engine or a race-ready powerplant, these pistons provide the strength and precision required for demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with advanced engineering and precision manufacturing, the DSS Racing FX Series pistons deliver superior performance and reliability. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for maximum strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve combustion efficiency\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.100\" bore size, fitting most 6.4L 392 HEMI engines\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm for optimal ring sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.720\" stroke and 6.2\" connecting rods, matching factory specifications\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratio options: 65cc dome (12.56:1), 74cc dome (11.23:1), and 85cc dome (9.98:1)\u003c\/li\u003e\n\u003cli\u003ePrecision machined for consistent fitment and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from high-grade aluminum alloy, providing an excellent balance of lightweight construction and exceptional strength. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe dome top design increases the combustion chamber volume, allowing for higher compression ratios that translate into improved power output and throttle response. Each piston is meticulously machined to tight tolerances, ensuring optimal ring sealing and minimal friction for enhanced engine efficiency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, making installation straightforward for experienced engine builders and professional shops. Depending on your engine build, you may choose between full-floating or press-fit wrist pins to suit your performance needs.\u003c\/p\u003e\u003cp\u003eProper ring end gap and clearance checks are recommended during installation to ensure optimal performance and longevity. These pistons are compatible with standard 3.720\" stroke crankshafts and 6.2\" connecting rods, matching factory dimensions for seamless integration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (.927\" diameter) with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston rings with 1.2\/1.2\/3mm groove dimensions\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers who demand increased power and durability from their 6.4L 392 HEMI engines. Whether upgrading a street machine, building a drag racing engine, or enhancing off-road performance, these pistons provide a reliable foundation for high-output builds.\u003c\/p\u003e\u003cp\u003eThey are especially suited for applications requiring higher compression ratios and improved combustion efficiency without compromising engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003632852,"sku":"1-6847-4100C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003665620,"sku":"2-6847-4100C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381003698388,"sku":"3-6847-4100C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003731156,"sku":"K1-6847-4100C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003763924,"sku":"K2-6847-4100C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381003796692,"sku":"K3-6847-4100C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002119_4_24e6c0a1-c8d1-43a0-87bd-d0538b583e1e.webp?v=1771667024"},{"product_id":"6847-4100-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.100 Bore: Fits Chrysler \/ Dodge \/ Jeep 6.1L SRT8 (05-10)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4100 \/ 2-6847-4100 \/ 3-6847-4100 \/ K1-6847-4100 \/ K2-6847-4100 \/ K3-6847-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker Gen III Hemi FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.1L SRT8 engine. Designed to accommodate a 4.100\" bore, these pistons are ideal for enthusiasts and builders looking to enhance engine durability and power output while maintaining reliable street and track performance.\u003c\/p\u003e\u003cp\u003eFeaturing a +4cc dome top design and a comp height of 1.21\", these pistons support increased compression ratios and improved combustion efficiency. Whether you are building a stroker motor or upgrading your factory components, this piston set delivers the strength and precision required for demanding Gen III Hemi builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with performance and reliability in mind, the DSS Racing FX Series pistons offer the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.100\" bore sizes for most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize compression and combustion\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2\/1.2\/3mm for reliable ring sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.578\" stroke and 6.243\" connecting rod length, ideal for stroker builds\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.64 to 12.12\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the DSS Racing FX Series is crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances grain structure, resulting in pistons that withstand the extreme pressures and temperatures of high-performance Gen III Hemi engines.\u003c\/p\u003e\u003cp\u003eThe dome top design increases combustion chamber volume, allowing for higher compression ratios without sacrificing detonation resistance. Precision machining ensures tight tolerances for optimal ring fitment and piston-to-cylinder wall clearance, contributing to improved engine efficiency and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models with a 4.100\" bore. Installation requires standard engine assembly procedures, with attention to proper ring end gap and pin installation based on the selected pin type (full-floating or press-fit). Builders should verify piston-to-valve clearance and deck height compatibility when assembling stroker configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003ePiston pins (full-floating or press-fit options)\u003c\/li\u003e\n\u003cli\u003ePiston rings with 1.2\/1.2\/3mm groove dimensions\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding 6.1L SRT8 Gen III Hemi engines. It suits applications ranging from street performance to competitive motorsports where increased displacement and compression are desired without compromising durability.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004320980,"sku":"1-6847-4100","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004353748,"sku":"2-6847-4100","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381004386516,"sku":"3-6847-4100","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004419284,"sku":"K1-6847-4100","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004452052,"sku":"K2-6847-4100","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004484820,"sku":"K3-6847-4100","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002118_4_f674defd-56c2-45ab-8d20-8ab408dbb956.webp?v=1771667023"},{"product_id":"6847-4090-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Pistons Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 (11-26)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4090C \/ 2-6847-4090C \/ 3-6847-4090C \/ K1-6847-4090C \/ K2-6847-4090C \/ K3-6847-4090C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines. Designed to fit most 6.4L 392 models, these pistons are crafted to deliver superior strength, durability, and performance for high-output small block Mopar HEMI Gen III engines. Whether you are building a high-performance street machine or a race-ready engine, these forged pistons provide the reliability and precision needed to handle increased power and boost levels.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.090 inches and a compression height of 1.21 inches, this piston set features a +4cc dome top design that optimizes combustion chamber volume and compression ratio. The pistons are compatible with full-floating or press-fit wrist pins, allowing for flexible installation options based on your engine build preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing forged pistons incorporate advanced design elements and materials to ensure maximum performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for enhanced strength and resistance to high stress\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize combustion efficiency and compression ratios\u003c\/li\u003e\n\u003cli\u003eCompatible with full-floating or press-fit wrist pins (.927\" pin diameter)\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for 3.720\" stroke and 6.2\" connecting rods, matching factory specifications\u003c\/li\u003e\n\u003cli\u003eAvailable compression ratios approximately 12.5:1 (65cc), 11.18:1 (74cc), and 9.94:1 (85cc) depending on dome volume\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003cli\u003eIdeal for high-performance builds requiring durability under increased cylinder pressures\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, providing an excellent balance of lightweight construction and high tensile strength. The forging process refines the metal grain structure, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under extreme operating conditions.\u003c\/p\u003e\u003cp\u003eThe dome top design with a +4cc volume enhances combustion chamber dynamics, improving power output and throttle response. The pistons feature carefully engineered ring grooves that accommodate high-performance piston rings, ensuring optimal sealing and oil control. The wrist pin bore is precision-machined to accept either full-floating or press-fit pins, offering versatility for various engine assembly methods.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, making it a direct replacement for factory pistons in these applications. Installation requires standard engine assembly procedures, and the pistons are compatible with the factory stroke of 3.720 inches and 6.2-inch connecting rods. Depending on your build, you may need to verify clearances and ring end gaps to ensure proper fitment and performance.\u003c\/p\u003e\u003cp\u003eThese pistons are suitable for both rebuilds and performance upgrades, providing a reliable foundation for increased horsepower and torque without compromising engine longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of four DSS Racing FX Series forged pistons (4.090\" bore)\u003c\/li\u003e\n\u003cli\u003eCompatible with full-floating or press-fit wrist pins (pins not included)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for 1.2\/1.2\/3mm piston rings (rings not included)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for automotive enthusiasts, engine builders, and professional racers who demand durable, high-performance components for their 6.4L 392 HEMI engines. Whether upgrading a street vehicle for improved power delivery or building a race engine capable of handling high boost and RPM, these forged pistons provide the strength and reliability necessary for serious performance applications.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004124372,"sku":"1-6847-4090C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004157140,"sku":"2-6847-4090C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381004189908,"sku":"3-6847-4090C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004222676,"sku":"K1-6847-4090C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004255444,"sku":"K2-6847-4090C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004288212,"sku":"K3-6847-4090C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002117_4_df5575f3-00a5-4185-b144-2c867d33e21c.webp?v=1771667023"},{"product_id":"6847-4085-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set 6.4L 392 Gen III Hemi Engines (K3-6847-4085C)","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Gen III Hemi Engines\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4085C \/ 2-6847-4085C \/ 3-6847-4085C \/ K1-6847-4085C \/ K2-6847-4085C \/ K3-6847-4085C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for Chrysler, Dodge, Jeep, and Ram 6.4L 392 Gen III Hemi engines. Designed to enhance performance and durability, these pistons are ideal for enthusiasts and professional builders seeking reliable, high-quality components for their small block Mopar Hemi builds. Featuring a +4cc dome top design, these pistons help optimize compression ratios for improved combustion efficiency and power delivery.\u003c\/p\u003e\u003cp\u003eWhether you are upgrading your engine for street performance, racing, or heavy-duty applications, the DSS Racing FX Series pistons offer a precise fit and robust construction to withstand demanding conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements to maximize engine performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.4L 392 Gen III Hemi engines from Chrysler, Dodge, Jeep, and Ram\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve power output\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches for optimal piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927 inches, available in full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eStroke length of 3.720 inches matched with a 6.2-inch connecting rod for balanced performance\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios to suit different combustion chamber volumes: 65cc (12.47:1), 74cc (11.16:1), and 85cc (9.91:1)\u003c\/li\u003e\n\u003cli\u003eDesigned for 390 Small Block Mopar Hemi Gen III applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the DSS Racing FX Series is forged from premium-grade aluminum alloy, providing exceptional strength-to-weight ratio and thermal conductivity. The dome top shape is precision-machined to exact specifications, ensuring consistent combustion chamber volume and reliable compression ratios. The pistons feature carefully engineered ring grooves to accommodate high-performance piston rings, enhancing sealing and reducing blow-by.\u003c\/p\u003e\u003cp\u003eThe pin bore is designed to accept either full-floating or press-fit wrist pins, allowing flexibility based on engine build preferences. The combination of a 3.720-inch stroke and 6.2-inch connecting rods ensures optimal piston speed and mechanical efficiency within the 6.4L 392 Hemi platform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are direct replacements for the 6.4L 392 Gen III Hemi engines found in Chrysler, Dodge, Jeep, and Ram vehicles. Installation requires standard engine assembly procedures and may necessitate matching the piston compression height to the cylinder head combustion chamber volume to achieve the desired compression ratio. No major modifications are typically needed when upgrading from factory pistons, but professional installation is recommended to ensure proper ring end gap and piston-to-wall clearance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eWrist pin options: full-floating or press-fit (depending on selected SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for ring groove dimensions and piston geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.4L 392 Gen III Hemi engines. It suits applications ranging from street performance to competitive racing where increased compression and durability are critical. The multiple compression ratio options allow customization to match fuel type, tuning, and intended use.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005336788,"sku":"1-6847-4085C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005369556,"sku":"2-6847-4085C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381005402324,"sku":"3-6847-4085C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005435092,"sku":"K1-6847-4085C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005467860,"sku":"K2-6847-4085C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005500628,"sku":"K3-6847-4085C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002116_4_7c24ecc8-4342-4ba1-a8de-4b1b826c501b.webp?v=1771667022"},{"product_id":"6847-4085-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing Forged +4cc Dome Top Pistons: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 (05-10)","description":"\u003ch3\u003eDSS Racing Forged +4cc Dome Top Pistons\u003c\/h3\u003e\u003cp\u003e2005–2010 Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Gen III Mopar Hemi\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4085D \/ 2-6847-4085D \/ 3-6847-4085D \/ K1-6847-4085D \/ K2-6847-4085D \/ K3-6847-4085D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing Forged +4cc Dome Top Pistons are precision-engineered performance components designed specifically for the 6.1L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram SRT8 models. These pistons are crafted to enhance engine durability and efficiency while supporting higher compression ratios for improved power output. Ideal for enthusiasts and professional builders seeking reliable, high-quality pistons that withstand the rigors of high-performance applications.\u003c\/p\u003e\u003cp\u003eFeaturing a +4cc dome top design, these pistons increase the combustion chamber volume, allowing for optimized compression ratios that can be tailored to your build. Whether upgrading for street performance or track use, these pistons provide a solid foundation for maximizing the potential of your 6.1L Hemi engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEngineered for durability and performance, these DSS Racing pistons offer several advanced features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to high stress\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve combustion efficiency\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm for optimal sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" designed for compatibility with 3.578\" stroke crankshafts\u003c\/li\u003e\n\u003cli\u003eRod length compatibility at 6.243\" for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to achieve compression ratios ranging from 9.57:1 to 12.03:1\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the 375 Small Block Mopar Hemi Gen III platform\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are manufactured using high-grade forged aluminum alloy, providing an excellent balance of lightweight design and exceptional strength. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under extreme heat and pressure conditions typical of high-performance engines.\u003c\/p\u003e\u003cp\u003eThe dome top shape is precisely machined to optimize combustion chamber dynamics, improving flame propagation and power delivery. The pistons feature carefully engineered ring grooves to maintain effective sealing while minimizing friction and wear. Additionally, the pin bore is designed to accommodate either full-floating or press-fit wrist pins, offering flexibility for different engine builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing pistons are direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Mopar Hemi engines. Installation requires standard engine assembly procedures and may necessitate professional machining to ensure proper clearances and fitment depending on your specific build. The pistons are compatible with the factory 3.578\" stroke crankshaft and 6.243\" connecting rods, simplifying the upgrade process.\u003c\/p\u003e\u003cp\u003eProper ring installation and torque specifications should be followed to maximize longevity and performance. These pistons are ideal for engine rebuilds, performance upgrades, or custom builds where enhanced compression and durability are desired.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per SKU selection)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves\u003c\/li\u003e\n\u003cli\u003ePin bore compatible with full-floating or press-fit wrist pins\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing pistons are perfect for automotive enthusiasts, professional engine builders, and racers who demand reliable, high-performance components for their 6.1L Mopar Hemi engines. Whether you are upgrading a street vehicle for enhanced power or building a race engine that requires robust internals, these pistons provide the strength and design features necessary to support aggressive tuning and increased compression ratios.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004550356,"sku":"1-6847-4085D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004583124,"sku":"2-6847-4085D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381004615892,"sku":"3-6847-4085D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004648660,"sku":"K1-6847-4085D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004681428,"sku":"K2-6847-4085D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004714196,"sku":"K3-6847-4085D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002115_4_28232471-d9f9-4ffe-84a3-abc419fa875a.webp?v=1771667022"},{"product_id":"6847-4085-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged 6.1 Stroker Gen III Hemi Piston Set: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4085 \/ 2-6847-4085 \/ 3-6847-4085 \/ K1-6847-4085 \/ K2-6847-4085 \/ K3-6847-4085\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker Gen III Hemi FX Series Forged Piston Set is engineered for enthusiasts and professional builders seeking enhanced durability and performance for their Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. Designed specifically for the 375 Small Block Mopar Hemi Gen III platform, these pistons accommodate stroker builds with a 3.578\" stroke and offer a range of compression ratios to suit various performance goals.\u003c\/p\u003e\u003cp\u003eWhether you are upgrading for increased power output, reliability under high boost, or extended engine life, this piston set provides a precision fit and superior strength to handle demanding conditions. The +4cc dome top design and multiple compression ratio options allow for fine-tuning combustion characteristics to match your build requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with performance and reliability in mind, the DSS Racing FX Series Forged Pistons offer the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Hemi engines\u003c\/li\u003e\n\u003cli\u003eForged construction for maximum strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eStroke length of 3.578\" and rod length of 6.243\" to support stroker engine builds\u003c\/li\u003e\n\u003cli\u003eAvailable compression ratios approximately 12.03:1 (65cc), 10.77:1 (74cc), and 9.57:1 (85cc) for tuning flexibility\u003c\/li\u003e\n\u003cli\u003eDesigned for compatibility with 375 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe pistons are crafted from high-quality forged aluminum alloy, delivering an optimal balance of lightweight strength and thermal conductivity. This construction ensures resistance to cracking and deformation under extreme combustion pressures and temperatures. The +4cc dome top enhances combustion efficiency by increasing chamber volume, while the precision-machined ring grooves maintain excellent ring seal and reduce blow-by.\u003c\/p\u003e\u003cp\u003eThe pin bore is engineered to accept either full-floating or press-fit wrist pins, allowing builders to select the best option for their application. The piston skirt and crown are designed to minimize friction and wear, contributing to improved engine longevity and performance consistency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines equipped with the Gen III Hemi platform. Installation requires standard engine assembly procedures and may necessitate professional machining to ensure proper clearances and ring end gaps based on your specific build. The pistons are compatible with stroker crankshafts featuring a 3.578\" stroke and connecting rods measuring 6.243\" in length.\u003c\/p\u003e\u003cp\u003eProper installation ensures optimal piston-to-cylinder wall clearance and ring seal, critical for achieving the intended compression ratios and engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eWrist pin compatibility for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for 1.2mm top and second rings, 3mm oil ring\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. It suits stroker engine projects, forced induction builds, and naturally aspirated setups requiring enhanced durability and tailored compression ratios. Whether building a street performance engine or a track-focused powerplant, these pistons provide the strength and precision needed for reliable high-performance operation.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004746964,"sku":"1-6847-4085","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004779732,"sku":"2-6847-4085","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381004812500,"sku":"3-6847-4085","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004845268,"sku":"K1-6847-4085","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004878036,"sku":"K2-6847-4085","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381004910804,"sku":"K3-6847-4085","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002114_4_7ad37b51-ebe3-40f3-b516-387b169be7a0.webp?v=1771667022"},{"product_id":"6847-4090-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing Gen III Hemi FX Series Forged Piston Set 4.090\" Bore: Chrysler \/ Dodge \/ Jeep (06-10)","description":"\u003ch3\u003eDSS Racing Gen III Hemi FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler, Dodge, Jeep, Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4090 \/ 2-6847-4090 \/ 3-6847-4090 \/ K1-6847-4090 \/ K2-6847-4090 \/ K3-6847-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing Gen III Hemi FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to replace factory pistons, this set offers enhanced strength and durability for high-performance applications. Ideal for enthusiasts and professional builders looking to maximize engine reliability and power output, these pistons provide a perfect balance of lightweight construction and robust design.\u003c\/p\u003e\u003cp\u003eWith a 4.090\" bore size and a compact dome top design, these pistons support increased compression ratios and improved combustion efficiency. Whether you are rebuilding your 6.1L SRT8 or upgrading for forced induction or naturally aspirated performance, this piston set delivers consistent quality and precision fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to meet the demands of high-performance Mopar Hemi engines, the DSS Racing FX Series pistons include several advanced features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and durability under extreme conditions\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize compression ratio and combustion efficiency\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit wrist pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm for reliable ring sealing and reduced blow-by\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" to maintain proper deck clearance and piston-to-valve clearance\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke crankshafts and 6.243\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.59:1 to 12.06:1\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent bore fit and balanced piston weight\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are crafted from high-grade forged aluminum alloy, providing an excellent strength-to-weight ratio essential for high-revving engines. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under thermal and mechanical stress. The dome top design with varying dish volumes allows builders to customize compression ratios to suit different performance goals, whether for street, strip, or track use.\u003c\/p\u003e\u003cp\u003eThe piston pin bore is engineered to accept either full-floating or press-fit pins, offering flexibility depending on engine build preferences. Ring grooves are precision-cut to accommodate standard 1.2mm top and second rings with a 3mm oil ring, ensuring optimal sealing and oil control. Overall, the design focuses on durability, performance, and compatibility with factory and aftermarket components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit for most Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.1L SRT8 Hemi engine. Installation requires standard engine rebuild procedures, including proper honing of the cylinder bores to the 4.090\" specification. The pistons are compatible with factory connecting rods and crankshaft stroke of 3.578\". Builders should verify piston-to-valve clearance and deck height during assembly to ensure optimal performance and reliability.\u003c\/p\u003e\u003cp\u003eNo special modifications are typically necessary, making these pistons an excellent upgrade for both OEM rebuilds and performance engine builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons sized for 4.090\" bore\u003c\/li\u003e\n\u003cli\u003eCompatible wrist pin bores for full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for 1.2\/1.2\/3mm ring sets\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for automotive enthusiasts, engine builders, and professional shops upgrading or rebuilding the 6.1L SRT8 Hemi engine. It suits applications ranging from street performance to drag racing and road course use, providing enhanced strength and reliability over stock pistons. The ability to select different dish volumes allows customization of compression ratios to match specific power goals and fuel types.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004943572,"sku":"1-6847-4090","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381004976340,"sku":"2-6847-4090","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381005009108,"sku":"3-6847-4090","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005041876,"sku":"K1-6847-4090","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005074644,"sku":"K2-6847-4090","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005107412,"sku":"K3-6847-4090","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002113_4_5d9af569-930e-40fb-bfd2-0a39f8e015a5.webp?v=1771667021"},{"product_id":"6847-4075-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-075-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set: Fits Dodge \/ Chrysler \/ Jeep 6.1L Gen III Hemi","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4075D \/ 2-6847-4075D \/ 3-6847-4075D \/ K1-6847-4075D \/ K2-6847-4075D \/ K3-6847-4075D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.1L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models. Designed to handle high-performance demands, these pistons offer enhanced strength and durability over stock cast pistons, making them an excellent upgrade for enthusiasts seeking improved engine reliability and power potential. Whether you are building a street performance engine or a track-focused powerplant, these forged pistons provide the foundation for consistent, high-output operation.\u003c\/p\u003e\u003cp\u003eWith a compact dome top design and precise dimensions tailored to the 373 Small Block Mopar Hemi Gen III, this piston set ensures optimal combustion chamber volume and compression ratios, supporting a variety of tuning and build configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing forged pistons incorporate advanced engineering and materials to deliver superior performance and longevity. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for enhanced strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003eFX Series design optimized for the 6.1L Gen III Hemi engine architecture\u003c\/li\u003e\n\u003cli\u003eCompact dome top with +4cc volume to support various compression ratios\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit wrist pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for reliable ring sealing\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and rod length of 6.243\" for precise fitment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.54 to 12.0\u003c\/li\u003e\n\u003cli\u003eDesigned to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models without modification\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing utilizes premium forged aluminum alloy in the FX Series pistons, delivering a lightweight yet incredibly robust component capable of withstanding the high cylinder pressures typical of performance Hemi engines. The pistons feature a carefully engineered dome shape that optimizes combustion efficiency and supports a range of compression ratios to suit different power goals and fuel types.\u003c\/p\u003e\u003cp\u003ePrecision machining ensures tight tolerances for ring grooves and pin bores, contributing to reduced friction and improved sealing. The pistons are compatible with both full-floating and press-fit wrist pins, allowing flexibility in engine assembly preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for the factory pistons in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, requiring no custom modifications for proper installation. Their dimensions and design maintain factory clearances and compatibility with existing rods and cylinder bores, simplifying the rebuild or upgrade process.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure correct ring end gap, piston orientation, and torque specifications are met for optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged DSS Racing FX Series pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eCompatible wrist pin options (full-floating or press-fit, depending on selection)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding their 6.1L Gen III Hemi engines. It suits applications ranging from street performance and daily driving to high-output track and drag racing builds where increased strength, reliability, and compression tuning flexibility are essential.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005140180,"sku":"1-6847-4075D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005172948,"sku":"2-6847-4075D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381005205716,"sku":"3-6847-4075D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005238484,"sku":"K1-6847-4075D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005271252,"sku":"K2-6847-4075D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005304020,"sku":"K3-6847-4075D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002112_4_c74d274d-51cb-417b-81a1-102eef003f46.webp?v=1771667021"},{"product_id":"6847-4075-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-075-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set 6.4L 392 Gen III Hemi Engines","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Gen III Hemi Engines\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4075C \/ 2-6847-4075C \/ 3-6847-4075C \/ K1-6847-4075C \/ K2-6847-4075C \/ K3-6847-4075C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for Chrysler, Dodge, Jeep, and Ram 6.4L 392 Gen III Hemi engines. Designed to enhance performance and reliability, these pistons are ideal for enthusiasts and builders seeking to maximize power output while maintaining durability under high-stress conditions. Featuring a +4cc dome top design, these pistons increase compression ratios and optimize combustion efficiency for improved engine response.\u003c\/p\u003e\u003cp\u003eWhether you are building a high-performance street machine or a race-ready engine, DSS Racing’s forged pistons provide the strength and precision needed to handle increased boost, higher RPMs, and aggressive tuning strategies.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced engineering and materials to deliver superior performance and longevity. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design to increase compression and power potential\u003c\/li\u003e\n\u003cli\u003eForged construction for exceptional strength and durability\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for optimal piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for reliable sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eDesigned for 3.720\" stroke and 6.2\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.88:1 to 12.44:1\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing FX Series pistons are crafted from high-quality forged aluminum alloy, providing an excellent strength-to-weight ratio essential for high-performance applications. The forging process enhances the metal’s grain structure, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under extreme operating conditions.\u003c\/p\u003e\u003cp\u003eThe dome top design not only increases compression but also promotes efficient combustion chamber dynamics, improving throttle response and power delivery. The pistons feature carefully engineered ring grooves and pin bosses to maintain ring seal integrity and reduce wear, contributing to longer engine life and consistent performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for Chrysler, Dodge, Jeep, and Ram 6.4L 392 Gen III Hemi engines, ensuring straightforward installation with minimal modifications. Compatibility with both full-floating and press-fit wrist pins allows flexibility depending on your engine build preferences. Proper ring end gap and piston-to-wall clearance should be verified during installation to achieve optimal performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins compatible with full-floating or press-fit setups\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for ring groove dimensions and piston geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance engine builders, professional tuners, and enthusiasts upgrading their 6.4L 392 Gen III Hemi engines. It suits applications ranging from street performance and drag racing to road course and off-road builds where increased compression and durability are critical. The multiple combustion chamber volume options allow customization of compression ratios to match fuel types and tuning goals.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005533396,"sku":"1-6847-4075C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005566164,"sku":"2-6847-4075C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381005598932,"sku":"3-6847-4075C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005631700,"sku":"K1-6847-4075C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005664468,"sku":"K2-6847-4075C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381005697236,"sku":"K3-6847-4075C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002111_4_b3996b2b-f10a-4272-805c-f608293de42d.webp?v=1771667020"},{"product_id":"6847-4065-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-065-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Pistons: Chrysler \/ Dodge \/ Jeep 6.1L Gen III Mopar Hemi","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Pistons\u003c\/h3\u003e\u003cp\u003e2005–Present Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Gen III Mopar Hemi\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4065D \/ 2-6847-4065D \/ 3-6847-4065D \/ K1-6847-4065D \/ K2-6847-4065D \/ K3-6847-4065D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Pistons are precision-engineered performance components designed specifically for the 6.1L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram SRT8 models. These pistons are crafted to enhance combustion efficiency and increase compression ratios, delivering improved power and throttle response for enthusiasts seeking reliable upgrades for their high-performance Mopar engines.\u003c\/p\u003e\u003cp\u003eIdeal for street performance, track use, or mild forced induction setups, these pistons offer a balance of durability and performance, making them a trusted choice for engine builders and racers alike. Their forged construction ensures they can withstand the rigors of high RPM and increased cylinder pressures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and quality materials, the DSS Racing FX Series pistons provide several key benefits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design to increase compression and optimize combustion chamber shape\u003c\/li\u003e\n\u003cli\u003eCompatible with 6.1L Gen III Mopar Hemi engines, fitting most Chrysler, Dodge, Jeep, and Ram SRT8 models\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise piston-to-head clearance and optimal quench\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability under high-stress conditions\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2\/1.2\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.243\" for exact fitment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.49:1 up to 11.94:1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston is forged from high-grade aluminum alloy, providing an excellent strength-to-weight ratio essential for high-performance applications. The dome top design not only increases compression but also improves flame propagation within the combustion chamber, enhancing power output and efficiency.\u003c\/p\u003e\u003cp\u003eThe pistons feature precision-machined ring grooves and pin bores to ensure tight tolerances and reliable sealing under extreme conditions. The option for full-floating or press-fit wrist pins allows customization based on engine build preferences and durability requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are engineered for direct fitment in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Mopar Hemi engines without the need for extensive modifications. Proper installation requires standard engine rebuilding procedures, including honing the cylinder walls and selecting compatible piston rings and wrist pins.\u003c\/p\u003e\u003cp\u003eDue to the variety of dome volumes available, builders can select the piston that best matches their desired compression ratio and engine setup. It is recommended to consult with a professional engine builder to ensure optimal fitment and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of four DSS Racing FX Series +4cc Dome Top Forged Pistons\u003c\/li\u003e\n\u003cli\u003eChoice of wrist pin configuration: full-floating or press-fit (depending on SKU)\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are perfect for Mopar enthusiasts and professional engine builders looking to upgrade the 6.1L Gen III Hemi for enhanced performance. They suit naturally aspirated builds aiming for higher compression as well as mild forced induction applications requiring durable forged components. Whether for street performance, drag racing, or road course use, these pistons provide a reliable foundation for increased power and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381005992148,"sku":"1-6847-4065D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006024916,"sku":"2-6847-4065D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381006057684,"sku":"3-6847-4065D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006090452,"sku":"K1-6847-4065D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006123220,"sku":"K2-6847-4065D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006155988,"sku":"K3-6847-4065D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002110_4_3cbebb75-8119-4b07-b696-991191756f29.webp?v=1771667020"},{"product_id":"6847-4055-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-055-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.055\" Bore: Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 (All)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4055C \/ 2-6847-4055C \/ 3-6847-4055C \/ K1-6847-4055C \/ K2-6847-4055C \/ K3-6847-4055C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, delivering exceptional strength and durability for high-performance applications. Designed to fit most 6.4L 392 models, these pistons are ideal for enthusiasts and professional builders seeking reliable, precision components to handle increased power and demanding conditions.\u003c\/p\u003e\u003cp\u003eBuilt to withstand the rigors of boosted, nitrous, or naturally aspirated setups, the FX Series pistons offer a perfect balance of lightweight construction and robust design. Their forged construction ensures superior resistance to heat and stress, making them a trusted upgrade for serious Mopar HEMI builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced design elements and manufacturing techniques to optimize engine performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 384 Small Block Mopar HEMI Gen III engines\u003c\/li\u003e\n\u003cli\u003e4.055\" bore size tailored for 6.4L 392 applications\u003c\/li\u003e\n\u003cli\u003eCompression height of 1.21\" for precise piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to enhance combustion efficiency\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring groove\u003c\/li\u003e\n\u003cli\u003eStroke compatibility: 3.720\" stroke engines\u003c\/li\u003e\n\u003cli\u003eConnecting rod length: 6.2\" for optimal piston travel and rod ratio\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes to adjust compression ratio: 65cc (12.32:1), 74cc (11.02:1), and 85cc (9.79:1)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are forged from premium-grade aluminum alloy, providing a lightweight yet incredibly strong foundation to endure high cylinder pressures and temperatures. The forging process enhances grain structure and mechanical properties, resulting in pistons that resist cracking, scuffing, and deformation under extreme conditions.\u003c\/p\u003e\u003cp\u003eEach piston features a precision-machined dome top with a +4cc volume to optimize combustion chamber shape and improve power output. The ring grooves are carefully cut to accommodate high-performance piston rings, ensuring excellent sealing and oil control. The wrist pin bore is engineered for either full-floating or press-fit installation, offering flexibility depending on engine build preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned as a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, these pistons require minimal modifications for installation. Builders should verify bore size compatibility and select the appropriate dome volume to match their desired compression ratio and fuel type. Proper ring end gap and piston-to-wall clearance should be checked during assembly to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins compatible with full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression height, dome volume, and ring groove dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is perfect for performance enthusiasts, engine builders, and racers upgrading or rebuilding their 6.4L 392 HEMI engines. Whether building a naturally aspirated powerhouse or a forced induction monster, the DSS Racing FX Series pistons provide the durability and precision needed to maximize power and reliability in street, strip, or track applications.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006385364,"sku":"1-6847-4055C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006418132,"sku":"2-6847-4055C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381006450900,"sku":"3-6847-4055C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006483668,"sku":"K1-6847-4055C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006516436,"sku":"K2-6847-4055C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006549204,"sku":"K3-6847-4055C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002109_4_2a3119d2-7c9d-460e-aa84-367ad4289852.webp?v=1771667019"},{"product_id":"6847-4075-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-075-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing 6.1 Stroker Gen III Hemi Forged Piston Set: Fits Chrysler \/ Dodge \/ Jeep 6.1L SRT8","description":"\u003ch3\u003eDSS Racing 6.1 Stroker Gen III Hemi Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4075 \/ 2-6847-4075 \/ 3-6847-4075 \/ K1-6847-4075 \/ K2-6847-4075 \/ K3-6847-4075\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker Gen III Hemi Forged Piston Set is engineered specifically for Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to accommodate the 373 cubic inch small block Mopar Hemi Gen III stroker build, these pistons provide a reliable upgrade for enthusiasts seeking enhanced durability and performance. Ideal for high-performance street and race applications, this piston set supports increased stroke and compression ratios while maintaining OEM fitment standards.\u003c\/p\u003e\u003cp\u003eBuilt to withstand the rigors of boosted and naturally aspirated powerplants, these forged pistons offer superior strength and thermal resistance compared to stock cast pistons. They are perfect for engine builders and performance tuners looking to maximize the potential of the 6.1L Hemi platform.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced design elements and precision manufacturing to deliver consistent performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 373ci Small Block Mopar Hemi Gen III stroker engines\u003c\/li\u003e\n\u003cli\u003eForged construction for enhanced strength and durability\u003c\/li\u003e\n\u003cli\u003eCompensated dome top with +4cc volume for optimized combustion\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring\u003c\/li\u003e\n\u003cli\u003eStroke length of 3.578\" and connecting rod length of 6.243\"\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios to suit different builds: 65cc dome for 12:1, 74cc dome for 10.73:1, and 85cc dome for 9.54:1\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures tight tolerances and reliable sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in this set is forged from high-grade aluminum alloy, providing an excellent balance of strength, weight, and heat dissipation. The dome top design with a +4cc volume enhances combustion efficiency and allows for flexible compression ratio tuning. The pistons feature carefully engineered ring grooves to accommodate high-performance piston rings, ensuring optimal oil control and minimal blow-by.\u003c\/p\u003e\u003cp\u003eThe wrist pin bore is designed to accept either full-floating or press-fit pins, offering versatility depending on engine build preferences. The pistons are crafted to withstand the increased stresses of stroker crankshafts and higher cylinder pressures common in performance applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines equipped with Gen III Hemi blocks. Installation requires standard engine assembly procedures and may necessitate professional machining for precise cylinder bore sizing and ring fitting. The pistons are compatible with stroker crankshafts featuring a 3.578\" stroke and connecting rods measuring 6.243\".\u003c\/p\u003e\u003cp\u003eBuilders should verify compression ratio and clearances based on their specific build parameters. These pistons are ideal for custom stroker builds and high-performance rebuilds where durability and power gains are priorities.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eWrist pin compatibility for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for piston dome volume and ring groove dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is perfect for engine builders, performance enthusiasts, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. It suits stroker builds aiming for increased displacement and power, as well as naturally aspirated or forced induction setups requiring robust, high-quality pistons capable of handling elevated cylinder pressures and RPM.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006188756,"sku":"1-6847-4075","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006221524,"sku":"2-6847-4075","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381006254292,"sku":"3-6847-4075","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006287060,"sku":"K1-6847-4075","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006319828,"sku":"K2-6847-4075","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006352596,"sku":"K3-6847-4075","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002108_4_db1b4da2-0a84-4383-8bfa-1920c25a8131.webp?v=1771667019"},{"product_id":"6847-4065-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-065-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set 6.4L 392 Gen III Hemi Engines (K3-6847-4065C)","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Gen III Hemi Engines\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4065C \/ 2-6847-4065C \/ 3-6847-4065C \/ K1-6847-4065C \/ K2-6847-4065C \/ K3-6847-4065C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for Chrysler, Dodge, Jeep, and Ram 6.4L 392 Gen III Hemi engines. Designed to enhance performance and durability, these pistons are ideal for enthusiasts and professional builders seeking to maximize power output while maintaining reliability. Featuring a +4cc dome top design, they provide increased compression ratios suitable for high-performance street and race applications.\u003c\/p\u003e\u003cp\u003eThese pistons are a direct fit for the 386 Small Block Mopar Hemi Gen III platform, offering a comp height of 1.21 inches and a pin diameter of .927 inches. They accommodate either full-floating or press-fit wrist pins, giving flexibility depending on your engine build preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to meet the demands of high-performance Hemi engines, the DSS Racing FX Series pistons offer a range of advanced features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design to increase compression and optimize combustion\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability under extreme conditions\u003c\/li\u003e\n\u003cli\u003eCompatible with 1.2\/1.2\/3mm ring groove sizes for reliable sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.720 inches and rod length of 6.2 inches for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.84 to 12.38\u003c\/li\u003e\n\u003cli\u003eDesigned for Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Gen III Hemi engines ensuring perfect fitment\u003c\/li\u003e\n\u003cli\u003eOptions for full-floating or press-fit wrist pins to suit different engine assembly methods\u003c\/li\u003e\n\u003cli\u003eOptimized for both street performance and track use with enhanced thermal and mechanical resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston in the DSS Racing FX Series is precision forged from high-grade aluminum alloy, delivering an excellent strength-to-weight ratio. The forging process enhances grain structure, resulting in pistons that resist cracking, scuffing, and deformation under high combustion pressures and temperatures. The +4cc dome top shape is CNC-machined to exact specifications, ensuring consistent compression ratios and optimal combustion chamber dynamics.\u003c\/p\u003e\u003cp\u003eThe pistons feature ring grooves sized at 1.2mm for the top and second rings, and 3mm for the oil ring, balancing oil control with minimal friction. The pin bore diameter of .927 inches supports both full-floating and press-fit wrist pin configurations, allowing builders to customize their setup based on performance goals and engine design.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct replacement for Chrysler, Dodge, Jeep, and Ram 6.4L 392 Gen III Hemi engines, making installation straightforward for experienced engine builders. The comp height of 1.21 inches and compatibility with a 3.720-inch stroke crankshaft ensure proper piston-to-valve clearance and ring seal. Depending on your build, you may select either full-floating or press-fit wrist pins to match your connecting rods and assembly preferences.\u003c\/p\u003e\u003cp\u003eProper ring end gap and piston deck clearance should be verified during installation to optimize performance and longevity. These pistons are suitable for both fresh builds and performance upgrades where increased compression and durability are desired.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eCompatible wrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eRing groove machining for 1.2\/1.2\/3mm ring sets\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratio and fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is perfect for performance enthusiasts, professional engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.4L 392 Gen III Hemi engines. Whether you are aiming for higher compression ratios for naturally aspirated builds or preparing the engine for forced induction, these pistons provide the strength and precision needed to handle increased power and stress.\u003c\/p\u003e\u003cp\u003eThey are well-suited for street performance, drag racing, road racing, and other high-demand motorsport applications where reliability and power gains are critical.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006975188,"sku":"1-6847-4065C","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007007956,"sku":"2-6847-4065C","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381007040724,"sku":"3-6847-4065C","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007073492,"sku":"K1-6847-4065C","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007106260,"sku":"K2-6847-4065C","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007139028,"sku":"K3-6847-4065C","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002107_4_1f4e89d3-cae7-47a3-87df-92096a40c90d.webp?v=1771667018"},{"product_id":"6847-4055-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-055-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Pistons 4.055\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4055D \/ 2-6847-4055D \/ 3-6847-4055D \/ K1-6847-4055D \/ K2-6847-4055D \/ K3-6847-4055D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Pistons are precision-engineered performance components designed specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. These pistons are built to enhance engine durability and efficiency while supporting higher compression ratios for improved power output. Ideal for enthusiasts and professional builders looking to upgrade their 370 Small Block Mopar Hemi Gen III engines, these pistons provide a reliable foundation for high-performance builds and track-ready applications.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.055 inches and a +4cc dome top design, these pistons optimize combustion chamber volume to help achieve the desired compression ratios ranging from approximately 9.47:1 to 11.91:1, depending on the combustion chamber size. Their comp height of 1.21 inches and compatibility with full-floating or press-fit wrist pins make them versatile for various engine configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEngineered for performance and durability, the DSS Racing FX Series pistons offer the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to high stress and heat\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to increase compression and improve combustion efficiency\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.055\" bore size engines, tailored for 6.1L SRT8 applications\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" available in full-floating or press-fit options for secure wrist pin retention\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.243\" for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eDesigned for 370 Small Block Mopar Hemi Gen III engines with a comp height of 1.21\"\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volume options (65cc, 74cc, 85cc) to tailor compression ratios\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are crafted from high-grade forged aluminum alloy, ensuring exceptional strength-to-weight ratio and durability under extreme operating conditions. The forging process enhances the metal grain structure, providing superior resistance to cracking and deformation compared to cast pistons. The dome top design is precisely machined to optimize combustion chamber shape and volume, improving thermal efficiency and power delivery.\u003c\/p\u003e\u003cp\u003eThe pistons feature carefully engineered ring grooves and pin bosses to maintain ring seal and wrist pin stability during high RPM operation. The option for full-floating or press-fit wrist pins allows builders to select the best fitment for their engine setup, balancing ease of assembly with performance requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing FX Series pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, making installation straightforward for experienced engine builders. Minimal modifications are typically required when upgrading from stock pistons, provided the engine bore size matches the 4.055\" specification. Proper ring end gap and piston-to-wall clearance should be verified during installation to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per selected SKU)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit depending on selection)\u003c\/li\u003e\n\u003cli\u003ePiston rings compatible with 1.2\/1.2\/3mm groove dimensions (may vary by package)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are ideal for performance enthusiasts, professional engine builders, and racers seeking to upgrade their 6.1L SRT8 engines for increased compression, improved durability, and enhanced power potential. They are well-suited for street performance, drag racing, and track applications where reliable high-RPM operation and thermal stability are critical.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006581972,"sku":"1-6847-4055D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006614740,"sku":"2-6847-4055D","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381006647508,"sku":"3-6847-4055D","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006680276,"sku":"K1-6847-4055D","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006713044,"sku":"K2-6847-4055D","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006745812,"sku":"K3-6847-4055D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002106_4_40fdca37-e98f-4377-9b0a-40dc62735848.webp?v=1771667018"},{"product_id":"6847-4065-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-065-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged +4cc Dome Top Piston Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series Forged +4cc Dome Top Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Gen III Hemi\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4065 \/ 2-6847-4065 \/ 3-6847-4065 \/ K1-6847-4065 \/ K2-6847-4065 \/ K3-6847-4065\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged +4cc Dome Top Piston Set is engineered specifically for the 6.1L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram SRT8 models. Designed to enhance engine performance and durability, these pistons offer a precision fit and increased combustion chamber volume with a +4cc dome top design. Ideal for enthusiasts and professional builders seeking reliable, high-quality components for street or track applications, this piston set delivers improved compression ratios and robust construction to handle increased power demands.\u003c\/p\u003e\u003cp\u003eWhether upgrading a stock engine or building a high-performance small block Mopar Hemi, these pistons provide the strength and precision necessary for consistent, efficient combustion and long-term reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with advanced engineering and performance in mind, the DSS Racing FX Series pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches for precise piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927 inches compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eDesigned for 3.578-inch stroke and 6.243-inch connecting rods, matching factory Gen III Hemi specs\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.49:1 to 11.94:1\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003cli\u003eCompatible with 371 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are forged from high-grade aluminum alloy, providing an optimal balance of lightweight design and exceptional strength. The dome top shape increases the combustion chamber volume by +4cc, allowing for higher compression ratios that improve power output and efficiency. The pistons feature a comp height of 1.21 inches, engineered to maintain proper deck clearance and prevent piston-to-valve contact in high-performance builds.\u003c\/p\u003e\u003cp\u003eThe pin bore is designed to accept either full-floating or press-fit wrist pins, offering flexibility depending on engine build preferences. Ring grooves are precisely cut to accommodate performance ring sets, ensuring effective sealing and reduced blow-by. The pistons are tailored to fit the 3.578-inch stroke and 6.243-inch rod length of the 6.1L Gen III Hemi, guaranteeing a perfect fit and smooth operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is a direct fit for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Hemi engines, making it an excellent choice for OEM replacements or performance upgrades. Installation requires standard engine assembly procedures, including proper ring installation, wrist pin fitting, and torque specifications. No major modifications are necessary when used within compatible engine builds, but professional installation is recommended to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eCompatible wrist pin options (full-floating or press-fit)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for ring groove dimensions and piston geometry\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers who demand enhanced durability and power from their 6.1L Gen III Hemi engines. It suits applications ranging from street performance upgrades to track-focused builds, providing improved compression and reliable operation under increased boost or naturally aspirated conditions. If you are upgrading your Chrysler, Dodge, Jeep, or Ram SRT8 engine for better throttle response, power gains, and long-term reliability, these DSS Racing pistons are an excellent choice.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007171796,"sku":"1-6847-4065","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007204564,"sku":"2-6847-4065","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381007237332,"sku":"3-6847-4065","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007270100,"sku":"K1-6847-4065","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007302868,"sku":"K2-6847-4065","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007335636,"sku":"K3-6847-4065","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002105_4_c139276f-6253-4784-a8e8-927f09c9f412.webp?v=1771667018"},{"product_id":"6845-4125-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.125\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4125D \/ 2-6845-4125D \/ 3-6845-4125D \/ K1-6845-4125D \/ K2-6845-4125D \/ K3-6845-4125D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, delivering exceptional strength and durability for high-performance applications. Designed to fit a 4.125\" bore, these pistons are ideal for enthusiasts and professional builders seeking reliable, precision-crafted components for their 383 Small Block Mopar Hemi Gen III builds.\u003c\/p\u003e\u003cp\u003eWith a compact dish top design and a compression height of 1.21 inches, these pistons optimize combustion efficiency while maintaining compatibility with factory and aftermarket components. Whether you are upgrading for increased power, durability, or engine longevity, the DSS Racing FX Series pistons provide a solid foundation for your performance build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements to meet the demands of high-output Mopar engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.125\" bore size, tailored for 6.1L SRT8 engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and heat resistance\u003c\/li\u003e\n\u003cli\u003eCompact dish top with -18cc volume to optimize compression ratios\u003c\/li\u003e\n\u003cli\u003eCompression height of 1.21 inches for precise piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" available in full-floating or press-fit options\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring\u003c\/li\u003e\n\u003cli\u003eDesigned for 3.578\" stroke and 6.243\" connecting rods\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios vary by combustion chamber volume: 9.55:1 (65cc), 8.78:1 (74cc), 8.02:1 (85cc)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are crafted from high-quality forged aluminum alloy, providing an optimal balance of lightweight strength and thermal conductivity. The forging process enhances grain structure and durability, allowing these pistons to withstand the rigors of high-performance and forced induction applications.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design with a -18cc volume to accommodate various combustion chamber sizes and compression ratios. Precision-machined ring grooves ensure proper sealing and reduced friction, while the choice of full-floating or press-fit wrist pins allows customization based on engine build preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines with a 4.125\" bore. Installation requires standard engine assembly procedures, and compatibility with factory rods and crankshafts is maintained. Builders should verify clearances and ring end gaps during assembly to ensure optimal performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of four DSS Racing FX Series forged pistons\u003c\/li\u003e\n\u003cli\u003eWrist pins (.927\") with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves ready for standard ring sets\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. Whether building a street performance engine, a track-ready machine, or a reliable high-output powerplant, these forged pistons offer the strength and design features necessary to support increased horsepower and torque demands.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006778580,"sku":"1-6845-4125D","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006811348,"sku":"2-6845-4125D","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381006844116,"sku":"3-6845-4125D","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006876884,"sku":"K1-6845-4125D","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006909652,"sku":"K2-6845-4125D","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381006942420,"sku":"K3-6845-4125D","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002104_4_76445e9c-0ada-4e1d-8e96-d16db1f2c0e0.webp?v=1771667017"},{"product_id":"6847-4055-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-055-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set: Fits Chrysler \/ Dodge \/ Jeep 6.1L SRT8 Gen III","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4055 \/ 2-6847-4055 \/ 3-6847-4055 \/ K1-6847-4055 \/ K2-6847-4055 \/ K3-6847-4055\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker Small Block Mopar Hemi Gen III FX Series Forged Piston Set is engineered for enthusiasts and professional builders seeking durable, high-performance pistons for their 6.1L SRT8 engines. Designed to fit most Chrysler, Dodge, Jeep, and Ram models equipped with the 6.1L Hemi, this piston set supports stroker builds with a 3.578\" stroke and offers enhanced strength and reliability under demanding conditions.\u003c\/p\u003e\u003cp\u003eThese forged pistons provide improved combustion efficiency and durability, making them ideal for high-output street, track, or racing applications. Whether upgrading a factory engine or building a custom stroker, this piston set delivers precision fitment and performance consistency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with advanced engineering and quality materials, the DSS Racing FX Series pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.1L Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for optimal piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to enhance compression and combustion\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.578\" stroke and 6.243\" connecting rod length\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.47:1 to 11.91:1\u003c\/li\u003e\n\u003cli\u003ePrecision forged for superior strength and fatigue resistance\u003c\/li\u003e\n\u003cli\u003eOptimized for high-performance stroker engine builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing pistons are forged from premium-grade aluminum alloy, providing an excellent balance of lightweight construction and high tensile strength. The forging process enhances grain structure, resulting in pistons that withstand extreme combustion pressures and temperatures common in performance engines.\u003c\/p\u003e\u003cp\u003eThe dome top design with varying volumes allows builders to fine-tune compression ratios to match specific engine configurations and fuel requirements. The pistons feature carefully machined ring grooves and wrist pin bores to ensure tight sealing and smooth articulation with the connecting rods, whether using full-floating or press-fit pins.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.1L SRT8 Small Block Mopar Hemi Gen III engine. Installation requires standard engine assembly procedures, with attention to proper ring end gap and wrist pin installation method based on the chosen pin type.\u003c\/p\u003e\u003cp\u003eBuilders upgrading to a stroker configuration with a 3.578\" stroke will benefit from the piston's compatible dimensions and dome volumes, ensuring optimal piston-to-cylinder head clearance and compression ratio. Professional installation is recommended to achieve precise tolerances and reliable engine performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as required for engine build)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eRing grooves machined to specified dimensions\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis DSS Racing forged piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding 6.1L SRT8 Mopar Hemi engines. It suits stroker builds, high-compression street engines, and track-focused applications where durability and precise combustion chamber control are critical.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007368404,"sku":"1-6847-4055","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007401172,"sku":"2-6847-4055","price":769.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381007433940,"sku":"3-6847-4055","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007466708,"sku":"K1-6847-4055","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007499476,"sku":"K2-6847-4055","price":967.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007532244,"sku":"K3-6847-4055","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002103_4_b5cd8b99-193b-4cb2-a07d-036057d163b6.webp?v=1771667017"},{"product_id":"6845-4125-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.125\" Bore: Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 (All)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4125C \/ 2-6845-4125C \/ 3-6845-4125C \/ K1-6845-4125C \/ K2-6845-4125C \/ K3-6845-4125C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines. Designed to fit most 6.4L 392 models, these pistons offer a reliable upgrade for enthusiasts seeking enhanced durability and performance. Crafted to meet the demanding conditions of high-performance and street applications, this piston set provides improved strength and thermal resistance compared to stock cast pistons.\u003c\/p\u003e\u003cp\u003eIdeal for builders and tuners working on the 398 Small Block Mopar HEMI Gen III platform, these pistons accommodate a 4.125\" bore and are optimized for a 3.720\" stroke with a 6.2\" rod length. Whether you are rebuilding or upgrading your engine, the DSS Racing FX Series pistons deliver precision fitment and consistent performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements to ensure durability and efficiency under high-stress conditions. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and fatigue resistance\u003c\/li\u003e\n\u003cli\u003eCompensated height of 1.21\" for optimal piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to control compression and support various combustion chamber volumes\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm top and second rings, with a 3mm oil ring groove for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.720\" stroke and 6.2\" connecting rods, matching factory and performance builds\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios tailored for different combustion chamber sizes: 65cc (9.88:1), 74cc (9.09:1), and 85cc (8.29:1)\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent fitment and performance across all pistons in the set\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from high-quality aluminum alloy, providing a lightweight yet robust component capable of withstanding the rigors of high-performance engines. The forging process enhances grain structure and mechanical properties, resulting in pistons that resist cracking and deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe dish-top design with a -18cc volume helps manage compression ratios, making these pistons versatile for various tuning setups. The piston pin bore is engineered to accept either full-floating or press-fit pins, allowing flexibility depending on engine build preferences. Additionally, the ring grooves are precision-cut to accommodate standard ring sizes, ensuring optimal sealing and oil control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.4L 392 engines, specifically the 398 Small Block Mopar HEMI Gen III platform. Installation requires standard engine rebuilding procedures, including proper honing of the cylinder bore to 4.125\" and ensuring compatibility with the 3.720\" stroke crankshaft and 6.2\" connecting rods.\u003c\/p\u003e\u003cp\u003eDue to the precise engineering and OEM-compatible dimensions, these pistons typically install without the need for custom modifications. However, professional installation and careful measurement are recommended to achieve optimal piston-to-wall clearance and ring end gap settings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComplete set of forged pistons sized for 4.125\" bore\u003c\/li\u003e\n\u003cli\u003eCompatible with full-floating or press-fit wrist pins (pins not included)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for standard piston rings\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and professional tuners upgrading or rebuilding Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines. Whether for street performance, track use, or mild racing applications, these forged pistons provide enhanced durability and reliability over stock components.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007859924,"sku":"1-6845-4125C","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381007892692,"sku":"2-6845-4125C","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381007925460,"sku":"3-6845-4125C","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007958228,"sku":"K1-6845-4125C","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381007990996,"sku":"K2-6845-4125C","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008023764,"sku":"K3-6845-4125C","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002102_4_18eef388-7dcb-44a4-bb1e-1a809afdb108.webp?v=1771667016"},{"product_id":"6845-4125-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-125-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.125\" Bore: Fits Dodge \/ Chrysler \/ Jeep (6.1L SRT8)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4125 \/ 2-6845-4125 \/ 3-6845-4125 \/ K1-6845-4125 \/ K2-6845-4125 \/ K3-6845-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker Gen III Hemi FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to accommodate a 4.125\" bore, these pistons are ideal for enthusiasts looking to upgrade their 383 small block Mopar Hemi Gen III stroker builds. With a focus on durability and precision, this piston set supports increased stroke length and compression ratios, delivering reliable power gains and enhanced engine longevity under demanding conditions.\u003c\/p\u003e\u003cp\u003eWhether you are building a street performance engine or a race-ready powerplant, these forged pistons provide the strength and dimensional accuracy needed to maximize your 6.1L Hemi’s potential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced design elements and manufacturing techniques to ensure optimal performance and fitment:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.125\" bore size for most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise deck clearance and piston-to-valve clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned to accommodate a 3.578\" stroke and 6.243\" connecting rods for stroker builds\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.55:1 to 8.02:1\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent piston weight and balance for smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing’s FX Series pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances the metal’s grain structure, resulting in pistons that withstand the high pressures and temperatures typical of performance Hemi engines. The dish top design reduces compression volume while maintaining efficient combustion chamber shape, helping to prevent detonation and improve power delivery.\u003c\/p\u003e\u003cp\u003eThe pistons feature carefully engineered ring grooves and wrist pin bores to ensure reliable ring sealing and wrist pin retention under high RPM and load conditions. The option for full-floating or press-fit wrist pins allows builders to select the best configuration for their specific application and durability requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines with a 4.125\" bore, making it a versatile choice for Gen III Hemi stroker builds. Installation requires standard engine assembly procedures, including proper ring end gap setting and wrist pin installation. Depending on the wrist pin option chosen, either full-floating or press-fit pins can be installed using appropriate retaining clips or interference fit techniques.\u003c\/p\u003e\u003cp\u003eBuilders should verify compatibility with their specific engine block and rotating assembly dimensions to ensure optimal piston-to-cylinder wall clearance and deck height. Professional installation is recommended to achieve the best performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit, depending on selected option)\u003c\/li\u003e\n\u003cli\u003eRetaining clips for wrist pins (if applicable)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts and engine builders upgrading or rebuilding Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. It suits stroker engine projects aiming to increase displacement and power output while maintaining durability and reliability. Whether for street performance, drag racing, or other motorsport applications, these pistons provide a solid foundation for a high-performance Gen III Hemi build.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008056532,"sku":"1-6845-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008089300,"sku":"2-6845-4125","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381008122068,"sku":"3-6845-4125","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008154836,"sku":"K1-6845-4125","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008187604,"sku":"K2-6845-4125","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008220372,"sku":"K3-6845-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002101_4_2b48d8c0-3c52-4836-b305-0d04b972959a.webp?v=1771667016"},{"product_id":"6845-4090-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Pistons Set (SET): Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 (05-10)","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4090D \/ 2-6845-4090D \/ 3-6845-4090D \/ K1-6845-4090D \/ K2-6845-4090D \/ K3-6845-4090D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are precision-engineered performance components designed specifically for the 6.1L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models. These pistons offer a perfect blend of strength, durability, and lightweight construction to handle the rigors of high-performance driving and racing applications.\u003c\/p\u003e\u003cp\u003eBuilt to exacting standards, these pistons feature a compact dish top design with a -18cc volume, optimized for efficient combustion and improved compression ratios. Whether you are upgrading your engine for street performance or track use, the FX Series pistons provide reliable power gains and enhanced engine longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned for enthusiasts and professional builders alike, the DSS Racing FX Series Forged Pistons deliver advanced technology and robust construction:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.1L Gen III Mopar Hemi engines used in Chrysler, Dodge, Jeep, and Ram SRT8 models\u003c\/li\u003e\n\u003cli\u003eCompacted height of 1.21 inches for optimal piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003ePin diameter of 0.927 inches, available in full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for superior sealing\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578 inches and connecting rod length of 6.243 inches\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios available: 9.41:1 (65cc), 8.65:1 (74cc), and 7.9:1 (85cc) for tuning flexibility\u003c\/li\u003e\n\u003cli\u003eForged from high-strength alloy for enhanced durability under high stress and elevated temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are crafted using advanced forging techniques that ensure uniform grain structure and superior mechanical properties. This process results in pistons that resist cracking, scuffing, and thermal fatigue, even under extreme operating conditions. The forged alloy material provides an excellent strength-to-weight ratio, reducing reciprocating mass and improving engine responsiveness.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design with a precise volume to optimize combustion efficiency and control detonation. The ring grooves are machined to tight tolerances to accommodate high-performance piston rings, ensuring excellent sealing and oil control. Additionally, the wrist pin options allow for customization based on engine build preferences and durability requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing FX Series Forged Pistons are direct replacements for factory pistons in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Installation requires standard engine rebuilding procedures and may involve balancing and blueprinting for optimal performance. The pistons are compatible with the factory stroke and rod length specifications, minimizing the need for additional modifications.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure proper ring end gap, piston-to-wall clearance, and wrist pin fitment. These pistons are ideal for engine builders seeking reliable, high-quality components for naturally aspirated or forced induction applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of 8 DSS Racing FX Series Forged Pistons\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eInstallation instructions and technical specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are perfect for performance enthusiasts, engine builders, and racers who demand durable, high-strength pistons for their 6.1L Mopar Hemi engines. Whether upgrading a street machine, preparing a track car, or building a reliable powerplant for daily driving, these pistons provide the foundation for improved power, efficiency, and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008253140,"sku":"1-6845-4090D","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008285908,"sku":"2-6845-4090D","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381008318676,"sku":"3-6845-4090D","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008351444,"sku":"K1-6845-4090D","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008384212,"sku":"K2-6845-4090D","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008416980,"sku":"K3-6845-4090D","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002100_4_0f32a855-c3d1-4cef-9689-9121f39dd21e.webp?v=1771667016"},{"product_id":"6845-4100-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.100\" Bore: Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 (All)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4100C \/ 2-6845-4100C \/ 3-6845-4100C \/ K1-6845-4100C \/ K2-6845-4100C \/ K3-6845-4100C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L 392 HEMI engine. Designed to fit most 6.4L 392 models, these pistons offer a precise 4.100\" bore size and are built to withstand the rigors of aggressive street driving, track use, and racing environments.\u003c\/p\u003e\u003cp\u003eCrafted for enthusiasts and professional builders alike, this piston set enhances engine durability and reliability while supporting increased power output. The FX Series pistons are an ideal upgrade for those seeking to improve engine efficiency, reduce reciprocating mass, and maintain tight tolerances under high stress.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and manufacturing techniques to deliver superior performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 393 Small Block Mopar HEMI Gen III engines\u003c\/li\u003e\n\u003cli\u003eCompacted height of 1.21\" for optimized piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to control compression ratio and combustion dynamics\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter available in full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003ePrecision ring grooves sized at 1.2mm (top and second) and 3mm (oil ring) for excellent sealing\u003c\/li\u003e\n\u003cli\u003eStroke length of 3.720\" matched to a 6.2\" connecting rod for balanced performance\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios tailored to combustion chamber volumes: 65cc (9.79), 74cc (9.0), and 85cc (8.21)\u003c\/li\u003e\n\u003cli\u003eForged from high-strength materials to resist heat and mechanical stress\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, providing an ideal balance of strength, weight, and thermal conductivity. The forging process ensures a dense, uniform grain structure that enhances fatigue resistance and durability under extreme operating conditions.\u003c\/p\u003e\u003cp\u003eEach piston features a carefully engineered dish top with an 18cc volume reduction to optimize combustion chamber shape and reduce detonation risk. The wrist pin bore is precision-machined to accommodate either full-floating or press-fit pins, allowing builders to customize assembly based on application needs. Ring grooves are designed to maintain ring seal integrity while minimizing friction and wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed for direct fitment in most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, making it a straightforward upgrade for engine rebuilds or performance enhancements. Installation requires standard machining and assembly procedures consistent with high-performance engine builds. Proper ring end gap and piston-to-wall clearance should be verified during installation to ensure optimal operation and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.100\" bore size\u003c\/li\u003e\n\u003cli\u003eWrist pin options: full-floating or press-fit\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves ready for standard piston rings\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratios and piston dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers who demand reliable, high-strength components for their 6.4L 392 HEMI-powered vehicles. Whether upgrading a street machine, preparing a drag or road racing engine, or building a durable daily driver with enhanced power, the DSS Racing FX Series pistons provide the foundation for improved engine performance and longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008449748,"sku":"1-6845-4100C","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008482516,"sku":"2-6845-4100C","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381008515284,"sku":"3-6845-4100C","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008548052,"sku":"K1-6845-4100C","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008580820,"sku":"K2-6845-4100C","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008613588,"sku":"K3-6845-4100C","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002099_4_99abf788-4341-49f6-923e-7b445b5676a4.webp?v=1771667015"},{"product_id":"6845-4100-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.100\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4100D \/ 2-6845-4100D \/ 3-6845-4100D \/ K1-6845-4100D \/ K2-6845-4100D \/ K3-6845-4100D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, including the 378 Small Block Mopar Hemi Gen III platform. Designed for enthusiasts and professional builders seeking enhanced durability and performance, these pistons offer a reliable upgrade over stock components. Whether you're rebuilding or upgrading your engine, this piston set delivers consistent strength and precision to handle increased power and demanding conditions.\u003c\/p\u003e\u003cp\u003eWith a 4.100\" bore size and a compact 1.21\" compression height, these pistons are optimized for high-performance applications. The -18cc dish top design helps manage compression ratios effectively, making them suitable for a variety of forced induction or naturally aspirated setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements to ensure durability and performance in high-stress environments:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.1L SRT8 engines from Chrysler, Dodge, Jeep, and Ram\u003c\/li\u003e\n\u003cli\u003e4.100\" bore diameter tailored for precise fitment\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003e18cc dish top to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003eCompression height of 1.21\" for ideal piston-to-cylinder head clearance\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eDesigned to work with a 3.578\" stroke and 6.243\" connecting rods\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios ranging from 7.94 to 9.45 depending on combustion chamber volume\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing FX Series pistons are crafted from high-quality forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances grain structure, resulting in pistons that withstand extreme combustion pressures and temperatures common in performance engines.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design with an 18cc volume reduction to optimize combustion efficiency and reduce the risk of detonation. Precision machining ensures tight tolerances for superior ring sealing and minimal friction. The wrist pin bore supports both full-floating and press-fit configurations, allowing flexibility depending on engine build preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, making it a direct replacement for stock pistons in these applications. Installation requires standard engine rebuild procedures, including proper honing and cleaning of the cylinder bores. Depending on your build, you may need to select the appropriate wrist pin retention method (full-floating or press-fit) to match your connecting rods.\u003c\/p\u003e\u003cp\u003eDue to the precise compression height and bore size, these pistons maintain factory geometry, ensuring compatibility with existing cylinder heads and components without the need for extensive modifications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.100\" bore diameter\u003c\/li\u003e\n\u003cli\u003eWrist pin bore compatible with .927\" pins (full-floating or press-fit options)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves sized 1.2\/1.2\/3mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding their 6.1L SRT8 engines. Whether you are increasing power output, improving engine reliability, or preparing your vehicle for track or street performance, these forged pistons provide a strong foundation for enhanced engine durability and efficiency.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008842964,"sku":"1-6845-4100D","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008875732,"sku":"2-6845-4100D","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381008908500,"sku":"3-6845-4100D","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008941268,"sku":"K1-6845-4100D","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008974036,"sku":"K2-6845-4100D","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009006804,"sku":"K3-6845-4100D","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002098_4_7c466b5f-e8ff-4be0-9bc8-3cd3a6165d73.webp?v=1771667015"},{"product_id":"6845-4100-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 (05-10)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4100 \/ 2-6845-4100 \/ 3-6845-4100 \/ K1-6845-4100 \/ K2-6845-4100 \/ K3-6845-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.1L Gen III Hemi Small Block engines found in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models. Designed to deliver superior strength and reliability, these pistons are ideal for enthusiasts and professional builders seeking to enhance engine durability and performance under demanding conditions.\u003c\/p\u003e\u003cp\u003eCrafted to exacting specifications, this piston set offers a perfect balance of lightweight construction and robust design, making it suitable for both street and track applications. Whether you are upgrading your engine for increased power output or replacing worn components, the DSS Racing FX Series pistons provide a dependable foundation for your build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced engineering to meet the rigorous demands of high-performance Mopar Hemi engines. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.1L Gen III Hemi Small Block engines used in Chrysler, Dodge, Jeep, and Ram SRT8 models\u003c\/li\u003e\n\u003cli\u003eForged construction for enhanced strength and durability compared to cast pistons\u003c\/li\u003e\n\u003cli\u003eCompact dish top design with an 18cc dish volume to optimize combustion chamber shape\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.243\" for precise engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios approximately ranging from 7.94 to 9.45, depending on combustion chamber volume (65cc, 74cc, 85cc)\u003c\/li\u003e\n\u003cli\u003eDesigned for use with 378 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from premium-grade aluminum alloy, providing an optimal combination of lightweight properties and exceptional strength. The forging process enhances the grain structure of the metal, resulting in pistons that resist cracking, scuffing, and thermal fatigue even under high cylinder pressures and temperatures.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design with an 18cc dish volume to improve combustion efficiency and reduce the risk of detonation. Pin bosses are precision-machined to accept either full-floating or press-fit wrist pins, allowing builders to tailor the setup to their specific performance needs. The ring grooves are machined to tight tolerances to ensure proper ring sealing and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Hemi Small Block engines, simplifying installation without the need for extensive modifications. Proper engine assembly practices, including precise ring end gap setting and clearance checks, are recommended to ensure optimal performance and durability.\u003c\/p\u003e\u003cp\u003eDue to the availability of different compression ratio options and pin configurations, it is important to select the correct piston variant that matches your engine build specifications and intended use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eWrist pin options (full-floating or press-fit, depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratio and piston dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding 6.1L Gen III Hemi Small Block engines. It suits applications ranging from high-performance street driving to competitive motorsports where enhanced strength and reliability are critical.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008646356,"sku":"1-6845-4100","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008679124,"sku":"2-6845-4100","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381008711892,"sku":"3-6845-4100","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008744660,"sku":"K1-6845-4100","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008777428,"sku":"K2-6845-4100","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381008810196,"sku":"K3-6845-4100","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002097_4_eed3096a-c0bb-4ea6-82f5-d0ff95d565f9.webp?v=1771667015"},{"product_id":"6845-4090-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 (05-10)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4090 \/ 2-6845-4090 \/ 3-6845-4090 \/ K1-6845-4090 \/ K2-6845-4090 \/ K3-6845-4090\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.1L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models. Designed to deliver exceptional strength and durability, these pistons are ideal for enthusiasts and professional builders seeking to enhance engine reliability and performance under demanding conditions. Whether you are upgrading for increased power output or replacing worn factory components, this piston set offers a precision fit and superior construction to support high-performance applications.\u003c\/p\u003e\u003cp\u003eWith a focus on maintaining factory-like dimensions while improving strength and heat resistance, the FX Series pistons provide a reliable foundation for both street and track use. Their forged design ensures they can withstand elevated combustion pressures and temperatures, making them a trusted choice for serious Mopar enthusiasts.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing pistons incorporate advanced engineering and materials to meet the rigorous demands of the 6.1L Hemi platform. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 376 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003eCompact height of 1.21 inches for optimal compression and clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to control compression ratio and combustion characteristics\u003c\/li\u003e\n\u003cli\u003e.927-inch pin diameter with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm for reliable ring sealing and durability\u003c\/li\u003e\n\u003cli\u003eDesigned to accommodate a 3.578-inch stroke and 6.243-inch connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios approximately 9.41:1 (65cc), 8.65:1 (74cc), and 7.9:1 (85cc) to suit various build goals\u003c\/li\u003e\n\u003cli\u003ePrecision forged construction for enhanced strength and fatigue resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are crafted from high-quality forged aluminum alloy, providing an excellent balance of strength, weight, and thermal conductivity. The forging process refines the grain structure of the metal, resulting in pistons that resist cracking and deformation under high stress. The dish top design helps manage compression ratios and combustion chamber dynamics, optimizing power delivery and engine efficiency.\u003c\/p\u003e\u003cp\u003eEach piston is machined to tight tolerances to ensure a precise fit within the cylinder bore, minimizing friction and wear. The option for full-floating or press-fit wrist pins allows builders to tailor the assembly to their specific performance and durability requirements. Additionally, the ring grooves are engineered to maintain ring stability and sealing under extreme operating conditions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Hemi engines. Installation typically requires standard engine rebuild procedures, including proper honing of cylinder bores and careful assembly to manufacturer specifications. No major modifications are necessary, making these pistons an excellent upgrade for both OEM rebuilds and performance builds.\u003c\/p\u003e\u003cp\u003eBuilders should verify compatibility with their specific engine configuration and consider the selected compression ratio to match their intended fuel and tuning setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons for the 6.1L Gen III Hemi\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eRing groove machining for standard piston rings\u003c\/li\u003e\n\u003cli\u003eInstallation guidelines and specifications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is ideal for Mopar enthusiasts, engine builders, and performance tuners who demand reliable, high-strength components for their 6.1L SRT8 engines. Whether upgrading for increased horsepower, preparing for forced induction, or restoring a high-mileage engine, these pistons provide the durability and precision needed for serious performance applications.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381009039572,"sku":"1-6845-4090","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381009072340,"sku":"2-6845-4090","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381009105108,"sku":"3-6845-4090","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009137876,"sku":"K1-6845-4090","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009170644,"sku":"K2-6845-4090","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009203412,"sku":"K3-6845-4090","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002096_4_583d3ef9-48fd-419e-a5a4-ed1a29b1556d.webp?v=1771667014"},{"product_id":"6845-4090-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.090\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4090C \/ 2-6845-4090C \/ 3-6845-4090C \/ K1-6845-4090C \/ K2-6845-4090C \/ K3-6845-4090C\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L 392 HEMI engine. Designed to fit most 6.4L 392 models, these pistons offer a perfect balance of strength, durability, and precision fitment for enthusiasts and builders looking to upgrade their engine’s bottom end. Whether you are building a street performance engine or a race-ready powerplant, these forged pistons provide the reliability and performance needed to handle increased power and boost levels.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.090 inches and a compatible stroke of 3.720 inches, this piston set is tailored for the 391 Small Block Mopar HEMI Gen III platform. The pistons feature a compact dish top design with an 18cc dish volume, helping to optimize combustion chamber dynamics and compression ratios for improved power delivery and efficiency.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing forged pistons incorporate advanced design elements and manufacturing techniques to ensure superior performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for enhanced strength and durability under high-stress conditions\u003c\/li\u003e\n\u003cli\u003eFX Series design optimized for 6.4L 392 HEMI engines, ensuring precise fit and function\u003c\/li\u003e\n\u003cli\u003e1.21\" compression height for compatibility with stock and aftermarket rods\u003c\/li\u003e\n\u003cli\u003e18cc dish top piston crown to control compression ratio and improve combustion\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eCompatible with 6.2\" connecting rods and 3.720\" stroke crankshafts\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.74:1 down to 8.18:1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing utilizes premium forged aluminum alloys to manufacture the FX Series pistons, delivering a combination of lightweight strength and thermal resistance. The forging process enhances grain structure and mechanical properties, allowing these pistons to withstand the rigors of high RPM and elevated cylinder pressures common in performance and racing engines.\u003c\/p\u003e\u003cp\u003eThe pistons are precision-machined to exacting tolerances, ensuring optimal ring sealing and minimal friction. The dish top design reduces detonation risk by controlling compression, while the ring grooves are engineered to maintain ring stability and oil control under demanding conditions. The wrist pin options provide flexibility for builders preferring either full-floating or press-fit configurations based on their engine setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed for direct fitment in most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, making it an ideal upgrade for rebuilds or performance builds. Installation requires standard engine assembly procedures, and compatibility with stock or aftermarket connecting rods and crankshafts is ensured by the specified dimensions. Builders should verify clearances and ring end gaps during installation to achieve optimal performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons sized for 4.090\" bore\u003c\/li\u003e\n\u003cli\u003eWrist pins (.927\") with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves for 1.2mm top and second rings, 3mm oil ring\u003c\/li\u003e\n\u003cli\u003eMultiple dish volume options to customize compression ratio\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is perfect for engine builders, performance enthusiasts, and racers upgrading or rebuilding their 6.4L 392 HEMI engines. Whether you are aiming for increased horsepower, improved durability, or enhanced engine response, these pistons provide a reliable foundation for high-performance builds in street, strip, or off-road applications.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381009236180,"sku":"1-6845-4090C","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381009268948,"sku":"2-6845-4090C","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381009301716,"sku":"3-6845-4090C","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009334484,"sku":"K1-6845-4090C","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009367252,"sku":"K2-6845-4090C","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009400020,"sku":"K3-6845-4090C","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002095_4_266a5be4-c113-4923-a4a0-4a887ba27356.webp?v=1771667014"},{"product_id":"6845-4085-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Piston Set 4.085\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4085D \/ 2-6845-4085D \/ 3-6845-4085D \/ K1-6845-4085D \/ K2-6845-4085D \/ K3-6845-4085D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, offering a direct fit for most models equipped with this powerplant. Designed for enthusiasts and professional builders alike, these pistons provide a robust upgrade over stock components, delivering enhanced strength and durability under high-performance conditions. Whether you are rebuilding your engine or upgrading for increased power and reliability, this piston set is crafted to meet the demands of modern performance applications.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.085 inches and a compact dish top design, these pistons optimize combustion efficiency and compression ratios, making them ideal for street, strip, or track use. Their compatibility with the 375 Small Block Mopar Hemi Gen III platform ensures precise fitment and reliable operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with advanced engineering and precision manufacturing, the DSS Racing FX Series Forged Pistons offer the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to high stress\u003c\/li\u003e\n\u003cli\u003e4.085\" bore size tailored for Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 engines\u003c\/li\u003e\n\u003cli\u003eCompact dish top with -18cc volume to optimize compression and combustion\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" compatible with full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for reliable ring sealing\u003c\/li\u003e\n\u003cli\u003eDesigned for a stroke of 3.578\" and connecting rod length of 6.243\"\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios approximately ranging from 7.88 to 9.39\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent performance and durability\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are forged from high-grade aluminum alloy, providing an excellent balance of lightweight design and exceptional strength. This construction allows the pistons to withstand the intense pressures and temperatures generated in high-performance Hemi engines. The dish top design with a -18cc volume helps control compression ratios, reducing the risk of detonation while maintaining power output.\u003c\/p\u003e\u003cp\u003eEach piston features carefully engineered ring grooves and pin bosses to ensure optimal sealing and minimal friction. The option for full-floating or press-fit wrist pins adds versatility for different engine builds and preferences. The precise dimensions and tight tolerances reflect DSS Racing’s commitment to quality and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct replacement for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, simplifying installation without the need for extensive modifications. The bore size and stroke specifications match factory dimensions, ensuring compatibility with existing engine components such as rods and rings. Proper engine assembly practices and clearances should be followed to achieve optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.085\" bore\u003c\/li\u003e\n\u003cli\u003eWrist pins compatible with full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratios and dimensions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and racers who demand reliable, high-strength components for their Mopar 6.1L SRT8 engines. Whether upgrading for increased horsepower, rebuilding a worn engine, or preparing a vehicle for track use, these pistons provide a durable foundation for enhanced engine performance and longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381009727700,"sku":"1-6845-4085D","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381009760468,"sku":"2-6845-4085D","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381009793236,"sku":"3-6845-4085D","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009826004,"sku":"K1-6845-4085D","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009858772,"sku":"K2-6845-4085D","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381009891540,"sku":"K3-6845-4085D","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002094_4_436d2ced-9e4d-4325-9770-a61a4c25a65a.webp?v=1771667013"},{"product_id":"6845-4085-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing 6.1 Stroker FX Series Forged Piston Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4085 \/ 2-6845-4085 \/ 3-6845-4085 \/ K1-6845-4085 \/ K2-6845-4085 \/ K3-6845-4085\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker FX Series Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to handle the increased demands of stroker builds and high-performance applications, these pistons provide exceptional strength and durability. Whether you are upgrading your engine for street performance, track use, or serious muscle car restoration, this piston set offers a reliable foundation for enhanced power and longevity.\u003c\/p\u003e\u003cp\u003eBuilt to exacting specifications, these pistons feature a -18cc dish top design to optimize compression ratios and combustion efficiency. They are compatible with the 375 Small Block Mopar Hemi Gen III platform and are ideal for enthusiasts seeking a high-quality forged piston solution that fits most 6.1L SRT8 models.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese DSS Racing forged pistons incorporate advanced design elements and precision manufacturing to deliver superior performance and reliability:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for maximum strength and durability under high stress\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm \/ 1.2mm \/ 3mm for optimal ring sealing and reduced friction\u003c\/li\u003e\n\u003cli\u003eDesigned for a 3.578\" stroke and 6.243\" connecting rod length, matching stroker configurations\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from 7.88 to 9.39\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures consistent fit and performance\u003c\/li\u003e\n\u003cli\u003eCompatible with Mopar Gen III Hemi 6.1L engines used in SRT8 models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are crafted from high-grade forged aluminum alloy, providing an optimal balance of lightweight strength and thermal conductivity. The forging process enhances the metal grain structure, resulting in pistons that resist cracking, scuffing, and deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design to control compression ratios and promote efficient combustion. The wrist pin bore is precision-machined to accept either full-floating or press-fit pins, allowing flexibility depending on engine build preferences. Ring grooves are cut to tight tolerances to maintain ring seal and reduce blow-by, contributing to improved engine efficiency and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, including stroker builds with a 3.578\" stroke. Installation requires standard engine assembly procedures and may involve balancing and blueprinting for optimal performance. The pistons accommodate both full-floating and press-fit wrist pins, giving builders options based on their connecting rod and pin setup.\u003c\/p\u003e\u003cp\u003eProper ring end gap and piston-to-wall clearance should be verified during installation to ensure reliable operation. These pistons are compatible with factory and aftermarket components designed for the Mopar Gen III Hemi platform.\u003c\/p\u003e\u003cp\u003eWhat’s Included\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of 8 DSS Racing FX Series forged pistons\u003c\/li\u003e\n\u003cli\u003eWrist pin bore prepared for full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003eMultiple dish volume options for compression ratio tuning\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is ideal for performance enthusiasts, engine builders, and professional shops upgrading or rebuilding Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. It suits stroker builds, high-boost applications, and naturally aspirated setups requiring durable forged pistons capable of handling increased cylinder pressures and RPM.\u003c\/p\u003e\u003cp\u003eWhether you are building a street cruiser, drag racer, or track-focused muscle car, these pistons provide a solid foundation for reliable power gains and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381010120916,"sku":"1-6845-4085","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381010153684,"sku":"2-6845-4085","price":719.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins and Locs Without Rings","offer_id":47381010186452,"sku":"3-6845-4085","price":899.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381010219220,"sku":"K1-6845-4085","price":867.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381010251988,"sku":"K2-6845-4085","price":897.95,"currency_code":"USD","in_stock":true},{"title":"FX-3 2618 Alloy with Lateral Gas Ports - XR .225 Wall Pin Upgrade - Spiro Locs \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381010284756,"sku":"K3-6845-4085","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002093_4_d57f97fc-5088-480e-96a5-dda4062695d5.webp?v=1771667013"}],"url":"https:\/\/fasthemis.com\/collections\/dss-racing-pistons-for-jeep-grand-cherokee-hemi.oembed?page=4","provider":"FastHemis","version":"1.0","type":"link"}