{"product_id":"6840-4085-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Flat Top Piston Set: Fits Chrysler \/ Dodge \/ Jeep (6.1L Gen III Hemi)","description":"\u003ch3\u003eDSS Racing FX Series Forged Flat Top Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6840-4085 \/ 2-6840-4085 \/ 3-6840-4085 \/ K1-6840-4085 \/ K2-6840-4085 \/ K3-6840-4085\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Flat Top Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models equipped with the Gen III Hemi engine. Designed to deliver superior strength and reliability, these pistons are ideal for enthusiasts and professional builders seeking to enhance engine durability and performance. Whether you are upgrading your 6.1L Hemi for street, strip, or track use, this piston set offers a precision fit and optimized combustion characteristics to maximize power output and efficiency.\u003c\/p\u003e\u003cp\u003eCrafted to exacting standards, the FX Series pistons feature a flat top design with a -1.5cc dish volume, providing a versatile compression ratio suitable for a variety of performance builds. Their compatibility with the 375 Small Block Mopar Hemi Gen III ensures seamless integration with existing engine components, making them a trusted choice for high-performance applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and materials to meet the demands of high-performance 6.1L Hemi engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePrecision forged construction for enhanced strength and durability\u003c\/li\u003e\n\u003cli\u003eFlat top piston design with -1.5cc dish for optimized combustion\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches for proper deck clearance\u003c\/li\u003e\n\u003cli\u003e.927-inch wrist pin diameter with options for full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions of 1.2mm\/1.2mm\/3mm to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eCompatible with a 3.578-inch stroke and 6.243-inch connecting rods\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios: 65cc (11.17:1), 74cc (10.08:1), and 85cc (9.04:1)\u003c\/li\u003e\n\u003cli\u003eDesigned for use in 375 Small Block Mopar Gen III Hemi engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series pistons are forged from high-grade aluminum alloy, delivering an excellent balance of lightweight performance and structural integrity. The forging process refines the grain structure of the metal, resulting in pistons that resist cracking and deformation under extreme combustion pressures and temperatures. The flat top design promotes efficient combustion chamber dynamics, contributing to improved throttle response and power delivery.\u003c\/p\u003e\u003cp\u003eEach piston is machined to tight tolerances to ensure consistent fitment and performance. The wrist pin bore is engineered to accept either full-floating or press-fit pins, allowing builders to tailor the assembly to their specific application. The ring grooves are precision cut to accommodate performance ring sets, ensuring optimal sealing and reduced blow-by.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons are designed as direct replacements for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Hemi engines. Installation requires standard engine assembly procedures, and no major modifications are typically necessary when paired with compatible rods and crankshafts. Builders should verify piston-to-deck clearance and ring end gaps during assembly to ensure optimal performance and reliability.\u003c\/p\u003e\u003cp\u003eWhether you are performing a fresh build or upgrading an existing engine, the DSS Racing FX Series pistons provide a reliable foundation for high-performance applications.\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 pin options (full-floating or press-fit depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratio and piston dimensions\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 who demand durable, high-quality components for their 6.1L Gen III Hemi engines. It suits street performance upgrades, drag racing, road racing, and other motorsport applications where strength and precision are critical. The multiple compression ratio options allow customization to match fuel types and tuning preferences.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381015331028,"sku":"1-6840-4085","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381015363796,"sku":"2-6840-4085","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":47381015396564,"sku":"3-6840-4085","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":47381015429332,"sku":"K1-6840-4085","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":47381015462100,"sku":"K2-6840-4085","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":47381015494868,"sku":"K3-6840-4085","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002068_4_fba3cfb0-97c4-431a-881b-e0dd00f14195.webp?v=1771667003","url":"https:\/\/fasthemis.com\/products\/6840-4085-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-085-inch-bore-pin-dia-0-927-comp-height-1-21","provider":"FastHemis","version":"1.0","type":"link"}