{"product_id":"6845-4055-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-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 6.1L SRT8 Engines","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\u003e1-6845-4055D \/ 2-6845-4055D \/ 3-6845-4055D \/ K1-6845-4055D \/ K2-6845-4055D \/ K3-6845-4055D\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 6.1L SRT8 engine. Designed to replace factory cast pistons, these forged pistons provide superior strength and durability, making them ideal for enthusiasts looking to enhance engine reliability under demanding conditions. Whether you are building a street performance engine or a track-ready powerplant, this piston set offers the precision and quality needed to withstand increased power and boost levels.\u003c\/p\u003e\u003cp\u003eThese pistons are compatible with the 370 Small Block Mopar Hemi Gen III platform and are tailored to fit engines with a 4.055\" bore size. Their compact design and optimized dish volume help maintain efficient combustion and compression ratios, supporting both naturally aspirated and forced induction setups.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to meet the rigorous demands of performance engines, the DSS Racing FX Series Forged Pistons include the following features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecision forged construction for enhanced strength and fatigue resistance\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for optimal piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to control compression and support various combustion chamber sizes\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\u003eCompatible with a 3.578\" stroke and 6.243\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 7.8:1 to 9.29:1\u003c\/li\u003e\n\u003cli\u003eDesigned for use in the Mopar 6.1L SRT8 engine family, ensuring precise fitment and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing utilizes advanced forging techniques to produce pistons that offer superior mechanical properties compared to standard cast pistons. The FX Series pistons are crafted from high-grade aluminum alloy, providing an excellent balance of strength, weight, and thermal conductivity. This construction reduces reciprocating mass while maintaining the durability needed for high RPM and high-load conditions.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top to optimize combustion chamber shape and compression ratio, enhancing power delivery and efficiency. The wrist pin bore is designed to accept either full-floating or press-fit pins, allowing flexibility depending on engine build preferences. Additionally, the ring grooves are machined to tight tolerances to ensure proper ring sealing and longevity under extreme conditions.\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 engine, specifically those with a 4.055\" bore. Installation requires standard engine rebuild procedures, including proper honing and cleaning of the cylinder bores. Depending on the wrist pin option selected, either full-floating or press-fit pins can be installed to match your engine’s configuration.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure correct piston ring end gaps, wrist pin alignment, and torque specifications. These pistons are compatible with the factory stroke and connecting rod length, making them a direct upgrade for performance rebuilds or engine refreshes.\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 4.055\" bore\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\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, engine builders, and racers who demand enhanced durability and performance from their Mopar 6.1L SRT8 engines. Whether upgrading for increased horsepower, forced induction, or extended engine life under high-stress conditions, the DSS Racing FX Series Forged Pistons provide a reliable foundation for serious builds.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381011628244,"sku":"1-6845-4055D","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381011661012,"sku":"2-6845-4055D","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":47381011693780,"sku":"3-6845-4055D","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":47381011726548,"sku":"K1-6845-4055D","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":47381011759316,"sku":"K2-6845-4055D","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":47381011792084,"sku":"K3-6845-4055D","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002079_4_df0baf83-3388-4999-99db-261fc9a70738.webp?v=1771667007","url":"https:\/\/fasthemis.com\/products\/6845-4055-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-top-gen-iii-hemi-forged-piston-set-4-055-inch-bore-pin-dia-0-927-comp-height-1-21","provider":"FastHemis","version":"1.0","type":"link"}