{"product_id":"6815-4125-426-6-2-6-4-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-1-12","title":"DSS Racing FX Series Forged Piston Set 4.125\" Bore: Fits Chrysler \/ Dodge \/ Jeep \/ Ram (11-26)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 \/ 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6815-4125 \/ 2-6815-4125 \/ 3-6815-4125 \/ K1-6815-4125 \/ K2-6815-4125 \/ K3-6815-4125\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 for high-performance applications in Mopar Gen III Hemi engines, specifically designed to fit 6.2L Hellcat, 6.4L 392, and Trackhawk models. These pistons are crafted to withstand the extreme demands of boosted and naturally aspirated setups, offering enhanced strength and durability over stock components. Ideal for enthusiasts and professional builders aiming to maximize engine reliability and power output, this piston set ensures consistent performance under high stress.\u003c\/p\u003e\u003cp\u003eWith a bore size of 4.125 inches and a compression height of 1.12 inches, these pistons provide a precise fit for the 433 Small Block Mopar Hemi Gen III platform. The design incorporates a -18cc dish top to optimize combustion chamber volume and compression ratios, supporting a range of build configurations.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with performance and reliability in mind, 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 detonation\u003c\/li\u003e\n\u003cli\u003e1.2mm\/1.2mm\/3mm ring grooves compatible with full-floating or press-fit pins\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927 inches for enhanced wrist pin stability\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 4.050 inches and connecting rod length of 6.125 inches\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (-18cc) to achieve approximate compression ratios of 10.67:1, 9.8:1, and 8.94:1 depending on combustion chamber size\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for optimal piston-to-wall clearance and ring seal\u003c\/li\u003e\n\u003cli\u003eCompatible with Mopar Gen III Hemi 6.2L Hellcat, 6.4L 392, and Trackhawk engines\u003c\/li\u003e\n\u003cli\u003eDesigned to handle high horsepower and torque applications including forced induction\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 structural integrity. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under high thermal and mechanical loads. The dish top design reduces compression volume by 18cc, allowing for fine-tuning of compression ratios to suit various engine builds and fuel types.\u003c\/p\u003e\u003cp\u003eEach piston features precision-machined ring grooves sized at 1.2mm for the top and second rings, and 3mm for the oil ring, ensuring optimal ring seating and oil control. The wrist pin bore supports either full-floating or press-fit pins, offering flexibility depending on engine assembly preferences. The pistons are engineered to maintain tight tolerances for bore and stroke compatibility, ensuring reliable operation in high-performance Mopar Gen III Hemi engines.\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 Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.4L 392 Hemi, 6.2L Hellcat, and Trackhawk engines. Installation requires standard engine assembly procedures, including proper ring end gap setting and piston orientation. Due to the forged construction and precise dimensions, these pistons are suitable for both rebuilds and performance upgrades without the need for extensive modifications.\u003c\/p\u003e\u003cp\u003eBuilders should verify compatibility with their specific engine build, including bore size and compression chamber volume, 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 forged aluminum pistons with 4.125\" bore diameter\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston rings (1.2\/1.2\/3mm groove sizes)\u003c\/li\u003e\n\u003cli\u003eWrist pin bore compatible with full-floating or press-fit 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\u003eThe DSS Racing FX Series Forged Piston Set is ideal for performance enthusiasts, professional engine builders, and racers who demand durability and precision from their Mopar Gen III Hemi engines. Whether upgrading a Hellcat, 392, or Trackhawk for street, strip, or off-road use, these pistons provide the strength and design features necessary to support high horsepower and torque levels while maintaining engine reliability.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381023817940,"sku":"1-6815-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381023850708,"sku":"2-6815-4125","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":47381023883476,"sku":"3-6815-4125","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":47381023916244,"sku":"K1-6815-4125","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":47381023949012,"sku":"K2-6815-4125","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":47381023981780,"sku":"K3-6815-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002034_4_b92f6dbc-db75-4107-bdc4-1676a6d4bff5.webp?v=1771666988","url":"https:\/\/fasthemis.com\/products\/6815-4125-426-6-2-6-4-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-1-12","provider":"FastHemis","version":"1.0","type":"link"}