{"product_id":"6847-4090-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series Forged Pistons Set 6.1L Gen III Mopar Hemi: Fits Chrysler \/ Dodge \/ Jeep (All)","description":"\u003ch3\u003eDSS Racing FX Series Forged Pistons\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4090D \/ 2-6847-4090D \/ 3-6847-4090D \/ K1-6847-4090D \/ K2-6847-4090D \/ K3-6847-4090D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series 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 offer a perfect balance of strength, durability, and lightweight construction, making them an ideal upgrade for enthusiasts seeking enhanced engine reliability and power potential.\u003c\/p\u003e\u003cp\u003eBuilt to withstand the rigors of high-performance applications, the FX Series pistons deliver improved combustion efficiency and thermal management. Whether you are building a street performance engine or a track-focused machine, these pistons provide the foundation for consistent, high-output operation.\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 Forged Pistons include the following key features:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eForged from high-strength aluminum alloy for superior durability and reduced weight\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design to optimize compression and combustion chamber shape\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21\" for precise piston-to-deck clearance and performance tuning\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 to accommodate high-performance piston rings\u003c\/li\u003e\n\u003cli\u003eCompatible with 3.578\" stroke and 6.243\" connecting rods for exact fitment\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple combustion chamber volumes (65cc, 74cc, 85cc) to tailor compression ratios from 9.59:1 up to 12.06:1\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the 376 cubic inch Small Block Mopar Gen III Hemi platform\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 premium forged aluminum alloy, providing an excellent strength-to-weight ratio essential for high-revving engines. The forging process enhances grain structure and mechanical properties, resulting in pistons that resist cracking and deformation under extreme heat and pressure.\u003c\/p\u003e\u003cp\u003eThe dome top design with a +4cc volume improves combustion efficiency by promoting better flame propagation and reducing detonation risk. Precision machining ensures tight tolerances for optimal ring sealing and minimal friction. 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 designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models equipped with the Gen III Mopar Hemi engine. Installation requires standard engine assembly procedures and may involve balancing and blueprinting for best results. The pistons are compatible with factory stroke and rod lengths, ensuring a straightforward swap in performance rebuilds or upgrades.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to verify clearances and ring end gaps, especially when selecting different combustion chamber volumes to adjust compression ratios.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eRing grooves pre-machined for high-performance piston rings\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\u003eThe DSS Racing FX Series Forged Pistons are ideal for automotive enthusiasts, engine builders, and racers who demand reliable, high-performance components for their 6.1L Mopar Hemi engines. Whether upgrading a street machine, building a drag racer, or preparing a track car, these pistons provide the strength and precision needed to maximize power and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003043028,"sku":"1-6847-4090D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381003075796,"sku":"2-6847-4090D","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":47381003108564,"sku":"3-6847-4090D","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":47381003141332,"sku":"K1-6847-4090D","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":47381003174100,"sku":"K2-6847-4090D","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":47381003206868,"sku":"K3-6847-4090D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002120_4_cfacadc2-7538-40d7-8b10-dbbe491ec27b.webp?v=1771667025","url":"https:\/\/fasthemis.com\/products\/6847-4090-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-090-inch-bore-pin-dia-0-927-comp-height-1-21","provider":"FastHemis","version":"1.0","type":"link"}