{"product_id":"6847-4065-6-1-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-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Pistons: Chrysler \/ Dodge \/ Jeep 6.1L Gen III Mopar Hemi","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Pistons\u003c\/h3\u003e\u003cp\u003e2005–Present Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Gen III Mopar Hemi\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4065D \/ 2-6847-4065D \/ 3-6847-4065D \/ K1-6847-4065D \/ K2-6847-4065D \/ K3-6847-4065D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Pistons are precision-engineered performance components designed specifically for the 6.1L Gen III Mopar Hemi engines found in most Chrysler, Dodge, Jeep, and Ram SRT8 models. These pistons are crafted to enhance combustion efficiency and increase compression ratios, delivering improved power and throttle response for enthusiasts seeking reliable upgrades for their high-performance Mopar engines.\u003c\/p\u003e\u003cp\u003eIdeal for street performance, track use, or mild forced induction setups, these pistons offer a balance of durability and performance, making them a trusted choice for engine builders and racers alike. Their forged construction ensures they can withstand the rigors of high RPM and increased cylinder pressures.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned with advanced engineering and quality materials, the DSS Racing FX Series pistons provide several key benefits:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e+4cc dome top design to increase compression and optimize combustion chamber shape\u003c\/li\u003e\n\u003cli\u003eCompatible with 6.1L Gen III Mopar Hemi engines, fitting most Chrysler, Dodge, Jeep, and Ram SRT8 models\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise piston-to-head clearance and optimal quench\u003c\/li\u003e\n\u003cli\u003eForged construction for superior strength and durability under high-stress conditions\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2\/1.2\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927\" with options for full-floating or press-fit installation\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578\" and connecting rod length of 6.243\" for exact fitment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.49:1 up to 11.94:1\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eEach piston is forged from high-grade aluminum alloy, providing an excellent strength-to-weight ratio essential for high-performance applications. The dome top design not only increases compression but also improves flame propagation within the combustion chamber, enhancing power output and efficiency.\u003c\/p\u003e\u003cp\u003eThe pistons feature precision-machined ring grooves and pin bores to ensure tight tolerances and reliable sealing under extreme conditions. The option for full-floating or press-fit wrist pins allows customization based on engine build preferences and durability requirements.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are engineered for direct fitment in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Mopar Hemi engines without the need for extensive modifications. Proper installation requires standard engine rebuilding procedures, including honing the cylinder walls and selecting compatible piston rings and wrist pins.\u003c\/p\u003e\u003cp\u003eDue to the variety of dome volumes available, builders can select the piston that best matches their desired compression ratio and engine setup. It is recommended to consult with a professional engine builder to ensure optimal fitment and performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of four DSS Racing FX Series +4cc Dome Top Forged Pistons\u003c\/li\u003e\n\u003cli\u003eChoice of wrist pin configuration: full-floating or press-fit (depending on SKU)\u003c\/li\u003e\n\u003cli\u003eTechnical specifications and installation guidelines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are perfect for Mopar enthusiasts and professional engine builders looking to upgrade the 6.1L Gen III Hemi for enhanced performance. They suit naturally aspirated builds aiming for higher compression as well as mild forced induction applications requiring durable forged components. Whether for street performance, drag racing, or road course use, these pistons provide a 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":47381005992148,"sku":"1-6847-4065D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381006024916,"sku":"2-6847-4065D","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":47381006057684,"sku":"3-6847-4065D","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":47381006090452,"sku":"K1-6847-4065D","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":47381006123220,"sku":"K2-6847-4065D","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":47381006155988,"sku":"K3-6847-4065D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002110_4_3cbebb75-8119-4b07-b696-991191756f29.webp?v=1771667020","url":"https:\/\/fasthemis.com\/products\/6847-4065-6-1-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-1-21","provider":"FastHemis","version":"1.0","type":"link"}