{"product_id":"6816-4125-426-6-2-6-4-stroker-small-block-mopar-hemi-gen-iii-fx-series-23cc-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\u003eFits Chrysler \/ Dodge \/ Jeep \/ Ram 6.2L Hellcat \u0026amp; 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6816-4125 \/ 2-6816-4125 \/ 3-6816-4125 \/ K1-6816-4125 \/ K2-6816-4125 \/ K3-6816-4125\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 Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.2L Hellcat and 6.4L 392 engines. Designed to handle the extreme demands of boosted and naturally aspirated setups, these pistons offer enhanced strength and durability over stock components. Ideal for enthusiasts and professional builders seeking reliable, race-ready pistons that maintain OEM compatibility while delivering superior performance.\u003c\/p\u003e\u003cp\u003eThese pistons are specifically crafted for the 433 Small Block Mopar Hemi Gen III platform, featuring a 4.125\" bore size and a compact 1.12\" compression height. Their design supports 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\u003eThe DSS Racing FX Series Forged Pistons combine advanced engineering with precision manufacturing to meet the rigorous demands of high-output Mopar engines. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from high-strength aluminum alloy for maximum durability and heat resistance\u003c\/li\u003e\n\u003cli\u003e4.125\" bore diameter optimized for 6.2L Hellcat and 6.4L 392 engine blocks\u003c\/li\u003e\n\u003cli\u003eCompact 1.12\" compression height for improved piston-to-cylinder clearance\u003c\/li\u003e\n\u003cli\u003e23cc dish top design to control compression ratio and support forced induction\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 both full-floating and press-fit wrist pins (.927\" pin diameter)\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 4.050\" and connecting rod length of 6.125\" for balanced engine geometry\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from 10.17:1 down to 8.6:1\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\u003eEach piston in the FX Series is forged from premium-grade aluminum alloy, delivering exceptional strength-to-weight ratio and thermal conductivity. The forging process enhances grain structure, resulting in pistons that resist cracking and deformation under high cylinder pressures and temperatures. The dish top design reduces compression ratio to accommodate boost levels typical of Hellcat and 392 engine builds, while maintaining efficient combustion chamber dynamics.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered ring groove profile to optimize ring seal and minimize blow-by, contributing to improved engine efficiency and longevity. The wrist pin bore supports either full-floating or press-fit configurations, allowing builders to customize assembly based on application requirements. Overall, the design balances durability, weight savings, and compatibility with factory components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Pistons are direct fit replacements for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and 6.4L 392 engines. Installation requires standard engine rebuild procedures, including proper honing and cleaning of the cylinder bores. These pistons are compatible with the stock stroke of 4.050\" and connecting rod length of 6.125\", ensuring seamless integration with existing rotating assemblies.\u003c\/p\u003e\u003cp\u003eBuilders should verify ring end gaps and wrist pin fitment during assembly. No major modifications to the engine block or components are typically necessary, making these pistons an excellent upgrade for performance builds ranging from street to track applications.\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 kit selection)\u003c\/li\u003e\n\u003cli\u003eWrist pins compatible with full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston rings (1.2mm top and second rings, 3mm oil ring)\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 Chrysler, Dodge, Jeep, and Ram vehicles powered by the 6.2L Hellcat or 6.4L 392 engines. Whether building a boosted street machine, a track-focused race car, or a high-output naturally aspirated engine, these pistons provide the strength, reliability, and precision needed to maximize power and durability.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381022834900,"sku":"1-6816-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381022867668,"sku":"2-6816-4125","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":47381022900436,"sku":"3-6816-4125","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":47381022933204,"sku":"K1-6816-4125","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":47381022965972,"sku":"K2-6816-4125","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":47381022998740,"sku":"K3-6816-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002037_4_90e0079a-1af0-4f9f-a96a-12afc445320b.webp?v=1771666990","url":"https:\/\/fasthemis.com\/products\/6816-4125-426-6-2-6-4-stroker-small-block-mopar-hemi-gen-iii-fx-series-23cc-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"}