{"product_id":"6720-3917-5-7-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-3-917-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\u003e1-6720-3917 \/ 2-6720-3917 \/ 3-6720-3917 \/ K1-6720-3917 \/ K2-6720-3917 \/ K3-6720-3917\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 meet the demands of high-performance applications, these pistons offer a reliable upgrade for enthusiasts seeking enhanced durability and precision. Whether you are rebuilding your engine or upgrading for increased power and efficiency, this piston set delivers consistent performance and long-lasting strength.\u003c\/p\u003e\u003cp\u003eBuilt to exacting standards, these pistons are ideal for street performance, mild racing, and heavy-duty use. Their flat top design optimizes combustion chamber dynamics, contributing to improved throttle response and power delivery.\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 quality materials to provide 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\u003eFlat top piston design with -1.5cc volume for optimized combustion efficiency\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches, engineered for precise piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003e.945-inch wrist pin diameter 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-inch stroke crankshafts and 6.243-inch connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 8.45:1 to 10.44:1\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent weight and balance for smooth engine operation\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 metal’s grain structure, resulting in superior resistance to cracking and deformation under extreme heat and pressure. The flat top design reduces detonation risk while maintaining efficient combustion chamber shape.\u003c\/p\u003e\u003cp\u003eEach piston features carefully engineered ring grooves and pin bosses to ensure optimal sealing and wrist pin retention. The option for full-floating or press-fit wrist pins allows customization based on engine build preferences and intended use.\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 most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi engines, making installation straightforward with minimal modifications required. Proper ring end gap and clearance checks are recommended during assembly to ensure optimal performance and longevity. These pistons fit engines with a 3.578-inch stroke and 6.243-inch connecting rods, matching factory specifications 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 flat top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (.945\" diameter), available in full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves ready to accept piston rings (rings not included)\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 automotive enthusiasts, engine builders, and performance tuners looking to upgrade or rebuild Chrysler, Dodge, Jeep, or Ram 5.7L Hemi engines. Whether for street performance, mild racing, or heavy-duty applications, these pistons provide a durable and 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":47381033550036,"sku":"1-6720-3917","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381033582804,"sku":"2-6720-3917","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":47381033615572,"sku":"3-6720-3917","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":47381033648340,"sku":"K1-6720-3917","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":47381033681108,"sku":"K2-6720-3917","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":47381033713876,"sku":"K3-6720-3917","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0001992_4_5b1fdd4e-68a3-4c43-813f-52601a5a5c57.webp?v=1771666970","url":"https:\/\/fasthemis.com\/products\/6720-3917-5-7-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-3-917-inch-bore-pin-dia-0-945-comp-height-1-21","provider":"FastHemis","version":"1.0","type":"link"}