{"product_id":"6840-4065-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-065-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing Gen III FX Forged Flat Top Piston Set: Fits Chrysler \/ Dodge \/ Jeep 6.1L SRT8 (05-10)","description":"\u003ch3\u003eDSS Racing Gen III FX Series Forged Flat Top Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6840-4065 \/ 2-6840-4065 \/ 3-6840-4065 \/ K1-6840-4065 \/ K2-6840-4065 \/ K3-6840-4065\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing Gen III FX Series Forged Flat Top Piston Set is engineered specifically for the 6.1L SRT8 engines found in many Chrysler, Dodge, Jeep, and Ram vehicles. Designed to handle the demands of high-performance applications, these pistons offer a perfect balance of strength, durability, and precision fitment. Whether you are rebuilding your engine or upgrading for enhanced reliability and power, this piston set delivers consistent performance and longevity under extreme conditions.\u003c\/p\u003e\u003cp\u003eIdeal for enthusiasts and professional builders alike, these pistons support high compression ratios and are compatible with various combustion chamber sizes, making them versatile for different tuning setups. The flat top design optimizes combustion efficiency and helps maintain a stable compression ratio, contributing to improved throttle response and power delivery.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt to exacting standards, the DSS Racing Gen III FX Series pistons incorporate advanced design elements and materials to ensure superior performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 371 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003eFlat top piston design with -1.5cc volume for optimized combustion\u003c\/li\u003e\n\u003cli\u003eCompression height of 1.21 inches for precise deck clearance\u003c\/li\u003e\n\u003cli\u003e.927 inch wrist pin diameter, available in full-floating or press-fit configurations\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 for a 3.578 inch stroke and 6.243 inch connecting rod length\u003c\/li\u003e\n\u003cli\u003eSupports approximate compression ratios ranging from 8.95:1 to 11.06:1 depending on combustion chamber size (65cc, 74cc, 85cc)\u003c\/li\u003e\n\u003cli\u003eForged construction for enhanced strength and durability under high stress\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 strength-to-weight ratio that withstands the rigors of high-performance and forced induction applications. The forging process refines the grain structure of the metal, resulting in superior toughness and resistance to cracking or deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe flat top design reduces the risk of detonation while maintaining efficient combustion chamber dynamics. Precision machining ensures tight tolerances for optimal piston-to-cylinder wall clearance, reducing friction and wear. 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\u003eThe DSS Racing Gen III FX Series pistons are designed as direct replacements for the 6.1L SRT8 engines used in Chrysler, Dodge, Jeep, and Ram vehicles, ensuring straightforward installation with minimal modifications. Proper ring end gap and piston pin fitment should be verified during assembly to guarantee optimal performance and longevity.\u003c\/p\u003e\u003cp\u003eThese pistons are compatible with standard 3.578 inch stroke crankshafts and 6.243 inch connecting rods, matching factory dimensions for seamless integration. Whether performing a rebuild or an upgrade, these pistons provide a reliable foundation for high-performance engine builds.\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 required for engine)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003ePiston rings with specified groove dimensions\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 perfect for performance enthusiasts, engine builders, and racers seeking durable, high-quality pistons for their 6.1L SRT8 Mopar engines. It suits naturally aspirated and forced induction builds aiming for improved power, reliability, and efficiency. Whether upgrading a street car or building a track-ready machine, these pistons deliver dependable performance under demanding conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381015920852,"sku":"1-6840-4065","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381015953620,"sku":"2-6840-4065","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":47381015986388,"sku":"3-6840-4065","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":47381016019156,"sku":"K1-6840-4065","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":47381016051924,"sku":"K2-6840-4065","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":47381016084692,"sku":"K3-6840-4065","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002065_4_d1475331-0075-499f-8eeb-db1ba43ee3b4.webp?v=1771667001","url":"https:\/\/fasthemis.com\/products\/6840-4065-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-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"}