{"product_id":"6845-4125-6-1-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-1-21","title":"DSS Racing FX Series Forged Piston Set 4.125\" Bore: Fits Dodge \/ Chrysler \/ Jeep (6.1L SRT8)","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\u003e1-6845-4125 \/ 2-6845-4125 \/ 3-6845-4125 \/ K1-6845-4125 \/ K2-6845-4125 \/ K3-6845-4125\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing 6.1 Stroker Gen III Hemi FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to accommodate a 4.125\" bore, these pistons are ideal for enthusiasts looking to upgrade their 383 small block Mopar Hemi Gen III stroker builds. With a focus on durability and precision, this piston set supports increased stroke length and compression ratios, delivering reliable power gains and enhanced engine longevity under demanding conditions.\u003c\/p\u003e\u003cp\u003eWhether you are building a street performance engine or a race-ready powerplant, these forged pistons provide the strength and dimensional accuracy needed to maximize your 6.1L Hemi’s potential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced design elements and manufacturing techniques to ensure optimal performance and fitment:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 4.125\" bore size for most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 engines\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and resistance to detonation\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise deck clearance and piston-to-valve clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing\u003c\/li\u003e\n\u003cli\u003eDesigned to accommodate a 3.578\" stroke and 6.243\" connecting rods for stroker builds\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dish volumes (65cc, 74cc, 85cc) to tailor compression ratios from approximately 9.55:1 to 8.02:1\u003c\/li\u003e\n\u003cli\u003ePrecision machining ensures consistent piston weight and balance for smooth operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing’s FX Series 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 pistons that withstand the high pressures and temperatures typical of performance Hemi engines. The dish top design reduces compression volume while maintaining efficient combustion chamber shape, helping to prevent detonation and improve power delivery.\u003c\/p\u003e\u003cp\u003eThe pistons feature carefully engineered ring grooves and wrist pin bores to ensure reliable ring sealing and wrist pin retention under high RPM and load conditions. The option for full-floating or press-fit wrist pins allows builders to select the best configuration for their specific application and durability requirements.\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 6.1L SRT8 engines with a 4.125\" bore, making it a versatile choice for Gen III Hemi stroker builds. Installation requires standard engine assembly procedures, including proper ring end gap setting and wrist pin installation. Depending on the wrist pin option chosen, either full-floating or press-fit pins can be installed using appropriate retaining clips or interference fit techniques.\u003c\/p\u003e\u003cp\u003eBuilders should verify compatibility with their specific engine block and rotating assembly dimensions to ensure optimal piston-to-cylinder wall clearance and deck height. Professional installation is recommended to achieve the best 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 pistons (quantity as required for engine configuration)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit, depending on selected option)\u003c\/li\u003e\n\u003cli\u003eRetaining clips for wrist pins (if applicable)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications and installation guidelines\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 and engine builders upgrading or rebuilding Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. It suits stroker engine projects aiming to increase displacement and power output while maintaining durability and reliability. Whether for street performance, drag racing, or other motorsport applications, these pistons provide a solid foundation for a high-performance Gen III Hemi build.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008056532,"sku":"1-6845-4125","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008089300,"sku":"2-6845-4125","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":47381008122068,"sku":"3-6845-4125","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":47381008154836,"sku":"K1-6845-4125","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":47381008187604,"sku":"K2-6845-4125","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":47381008220372,"sku":"K3-6845-4125","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002101_4_2b48d8c0-3c52-4836-b305-0d04b972959a.webp?v=1771667016","url":"https:\/\/fasthemis.com\/products\/6845-4125-6-1-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-1-21","provider":"FastHemis","version":"1.0","type":"link"}