{"product_id":"6720-3957-5-7-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-3-957-inch-bore-pin-dia-0-945-comp-height-1-21","title":"DSS Racing FX Series Forged Flat Top Pistons Set: Fits Chrysler \/ Dodge \/ Jeep \/ Ram 5.7L Hemi","description":"\u003ch3\u003eDSS Racing FX Series Forged Flat Top Pistons Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 5.7L Hemi Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6720-3957 \/ 2-6720-3957 \/ 3-6720-3957 \/ K1-6720-3957 \/ K2-6720-3957 \/ K3-6720-3957\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 Set is engineered specifically for Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Hemi engine. Designed to replace factory pistons, these forged pistons offer enhanced strength and durability for high-performance and rebuild applications. Ideal for enthusiasts and professional builders looking to improve engine reliability and power potential, this piston set supports a range of compression ratios to suit various build requirements.\u003c\/p\u003e\u003cp\u003eWith a flat top design and precise comp height, these pistons are optimized for efficient combustion and consistent performance. Whether upgrading a stock engine or building a high-output powerplant, the DSS Racing FX Series pistons provide a solid foundation for long-lasting engine operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced engineering and materials to meet the demands of modern performance engines. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003eFlat top design with a -1.5cc volume for optimized combustion chamber shape\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches for precise piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e.945-inch wrist pin diameter, available in 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-inch stroke crankshafts and 6.243-inch connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios approximately 10.61:1 (65cc), 9.58:1 (74cc), and 8.59:1 (85cc)\u003c\/li\u003e\n\u003cli\u003eDesigned for the 352 Small Block Mopar Hemi Gen III FX engine platform\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eManufactured from premium forged aluminum alloy, these pistons deliver exceptional strength-to-weight ratio and thermal conductivity. The forging process enhances grain structure, providing increased durability under extreme combustion pressures and temperatures. The flat top piston crown is precision-machined to ensure consistent volume and optimal combustion efficiency.\u003c\/p\u003e\u003cp\u003eThe pistons feature carefully engineered ring grooves to maintain ring seal and reduce blow-by, while the wrist pin bore is designed for either full-floating or press-fit installation, allowing flexibility depending on engine build preferences. The overall design balances strength, weight, and thermal management to support both street and track applications.\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 5.7L Hemi engines, specifically the Gen III 352 Small Block Mopar Hemi FX series. Installation requires standard engine rebuild procedures and may necessitate matching the piston compression height and ring package to the specific engine build. No major modifications are typically needed when replacing factory pistons with this set, making it 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 flat top pistons (quantity as required for engine)\u003c\/li\u003e\n\u003cli\u003eWrist pins (.945\" diameter), full-floating or press-fit depending on selection\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, engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 5.7L Hemi engines. It suits applications ranging from mild street performance to moderate race builds where enhanced strength and reliability are critical. The multiple compression ratio options allow customization for various 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":47381032763604,"sku":"1-6720-3957","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381032796372,"sku":"2-6720-3957","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":47381032829140,"sku":"3-6720-3957","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":47381032861908,"sku":"K1-6720-3957","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":47381032894676,"sku":"K2-6720-3957","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":47381032927444,"sku":"K3-6720-3957","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0001995_4_76aec78c-6c37-47e8-b33f-e1882b48cbeb.webp?v=1771666971","url":"https:\/\/fasthemis.com\/products\/6720-3957-5-7-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-3-957-inch-bore-pin-dia-0-945-comp-height-1-21","provider":"FastHemis","version":"1.0","type":"link"}