{"product_id":"6840-4100-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Flat Top Piston Set 4.100\" Bore: Fits most 6.1L SRT8","description":"\u003ch3\u003eDSS Racing 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\u003e1-6840-4100 \/ 2-6840-4100 \/ 3-6840-4100 \/ K1-6840-4100 \/ K2-6840-4100 \/ K3-6840-4100\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 engines, delivering exceptional strength and durability for high-performance applications. Designed to fit most 6.1L SRT8 models, these pistons are ideal for enthusiasts and professional builders seeking reliable, lightweight components that withstand the rigors of aggressive driving and racing conditions.\u003c\/p\u003e\u003cp\u003eFeaturing a 4.100\" bore size and a flat top design with a -1.5cc dish, these pistons optimize combustion efficiency and compression ratios, enhancing power output and throttle response. Whether you're rebuilding your engine or upgrading for increased performance, the DSS Racing FX Series pistons provide a solid foundation for your build.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBuilt with precision and performance in mind, these pistons offer a range of advanced features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged construction for superior strength and resistance to high stress\u003c\/li\u003e\n\u003cli\u003eFlat top design with a -1.5cc dish to optimize compression and combustion\u003c\/li\u003e\n\u003cli\u003eCompatible with 4.100\" bore size engines, specifically the 6.1L SRT8 HEMI\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 \/ 1.2mm \/ 3mm for reliable ring sealing\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" to maintain proper piston-to-valve clearance\u003c\/li\u003e\n\u003cli\u003eDesigned for use with 3.578\" stroke and 6.243\" rod length setups\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple compression ratios: 65cc (11.23:1), 74cc (10.14:1), and 85cc (9.09:1)\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for consistent fitment and performance\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 crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight properties and structural integrity. Forging enhances the metal grain structure, resulting in pistons that resist cracking, scuffing, and deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe flat top design with a slight dish (-1.5cc) is engineered to optimize combustion chamber dynamics, improving power delivery and efficiency. The pistons feature carefully machined ring grooves and pin bores to ensure proper sealing and smooth articulation with the connecting rods, whether using full-floating or press-fit wrist pins.\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 engines with a 4.100\" bore. Installation requires standard engine rebuild procedures and may involve balancing and honing to achieve optimal clearances. The pistons accommodate a 3.578\" stroke crankshaft and 6.243\" connecting rods, matching factory or aftermarket configurations.\u003c\/p\u003e\u003cp\u003eChoose between full-floating or press-fit wrist pin options depending on your engine build preferences and performance goals. Proper ring installation and torque specifications should be followed to ensure reliable operation and longevity.\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, depending on selection)\u003c\/li\u003e\n\u003cli\u003eRing grooves pre-machined for 1.2\/1.2\/3mm piston rings\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 ideal for performance enthusiasts, engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. Whether you are enhancing street performance, preparing for track use, or building a reliable high-output powerplant, these pistons provide the strength and precision needed to handle increased horsepower and torque demands.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381013496020,"sku":"1-6840-4100","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381013528788,"sku":"2-6840-4100","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":47381013561556,"sku":"3-6840-4100","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":47381013594324,"sku":"K1-6840-4100","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":47381013627092,"sku":"K2-6840-4100","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":47381013659860,"sku":"K3-6840-4100","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002077_4_3e0bfdfa-93ec-4ed1-9e6b-fa8229a9bbb2.webp?v=1771667006","url":"https:\/\/fasthemis.com\/products\/6840-4100-6-1-stroker-small-block-mopar-hemi-gen-iii-fx-series-1-5cc-flat-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","provider":"FastHemis","version":"1.0","type":"link"}