{"product_id":"6807-4065-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-065-inch-bore-pin-dia-0-927-comp-height-1-09","title":"DSS Racing FX Series +4cc Dome Top Forged Pistons 4.065\" Bore: Fits most 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series Forged +4cc Dome Top Pistons\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6807-4065 \/ 2-6807-4065 \/ 3-6807-4065 \/ K1-6807-4065 \/ K2-6807-4065 \/ K3-6807-4065\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged +4cc Dome Top Pistons are precision-engineered performance components designed specifically for Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Crafted to enhance combustion efficiency and power output, these pistons feature a +4cc dome top design that increases compression ratios, delivering improved throttle response and overall engine performance.\u003c\/p\u003e\u003cp\u003eIdeal for enthusiasts and professional builders seeking durable, high-strength pistons for naturally aspirated or mildly boosted applications, these pistons offer a reliable upgrade over factory cast components. Their compatibility with the 420 Small Block Mopar Hemi Gen III platform ensures a perfect fit and optimal performance gains.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEngineered with advanced design and manufacturing techniques, the DSS Racing FX Series pistons provide a balance of strength, weight savings, and thermal efficiency. Key features include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design to increase compression ratio and combustion efficiency\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability under high-stress conditions\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.065\" bore size and 4.050\" stroke engines\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm top and second rings, and 3mm oil ring groove for optimal sealing\u003c\/li\u003e\n\u003cli\u003eComp height of 1.09\" for precise piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003eDesigned for use with 6.125\" connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volume options (65cc, 74cc, 85cc) to tailor compression ratios from approximately 10.62:1 to 13.38:1\u003c\/li\u003e\n\u003cli\u003eIdeal for high-performance street and track applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are forged from premium-grade aluminum alloy, providing an excellent strength-to-weight ratio essential for high-revving engines. The dome top design is CNC-machined to exacting tolerances, ensuring consistent combustion chamber volume and optimal flame propagation. The pistons are engineered to withstand the rigors of increased cylinder pressures and temperatures common in performance builds.\u003c\/p\u003e\u003cp\u003eThe ring grooves are precision-cut to accommodate high-performance piston rings, enhancing sealing and reducing blow-by. The option for full-floating or press-fit wrist pins allows builders to customize assembly based on application requirements and durability preferences.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned as direct replacements for factory pistons in Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, these DSS Racing FX Series pistons require no major modifications for installation. Proper engine assembly practices, including ring end gap adjustment and piston-to-wall clearance measurement, are recommended to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003eCompatibility with the 420 Small Block Mopar Hemi Gen III platform ensures a precise fit with existing components such as rods and cylinder heads. Builders should verify compression ratio targets based on selected combustion chamber volumes and engine setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per SKU selection)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit depending on configuration)\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\u003eThese pistons are perfect for performance enthusiasts, engine builders, and racers upgrading their 6.1L SRT8 engines for increased power and reliability. They suit naturally aspirated builds, mild forced induction setups, and high-performance street or track applications where enhanced compression and durability are desired.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381026570452,"sku":"1-6807-4065","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381026603220,"sku":"2-6807-4065","price":769.95,"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":47381026635988,"sku":"3-6807-4065","price":959.95,"currency_code":"USD","in_stock":true},{"title":"FX-1 4032 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381026668756,"sku":"K1-6807-4065","price":937.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins - Locs With DSS Racing Rings in a Kit","offer_id":47381026701524,"sku":"K2-6807-4065","price":967.95,"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":47381026734292,"sku":"K3-6807-4065","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002022_4_2c004c1d-e354-4bfb-8ddf-fe1e30786332.webp?v=1771666983","url":"https:\/\/fasthemis.com\/products\/6807-4065-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-065-inch-bore-pin-dia-0-927-comp-height-1-09","provider":"FastHemis","version":"1.0","type":"link"}