{"product_id":"6845-4090-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-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 (SET): Fits Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 (05-10)","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\u003e1-6845-4090D \/ 2-6845-4090D \/ 3-6845-4090D \/ K1-6845-4090D \/ K2-6845-4090D \/ K3-6845-4090D\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 6.1L SRT8 models. These pistons offer a perfect blend of strength, durability, and lightweight construction to handle the rigors of high-performance driving and racing applications.\u003c\/p\u003e\u003cp\u003eBuilt to exacting standards, these pistons feature a compact dish top design with a -18cc volume, optimized for efficient combustion and improved compression ratios. Whether you are upgrading your engine for street performance or track use, the FX Series pistons provide reliable power gains and enhanced engine longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDesigned for enthusiasts and professional builders alike, the DSS Racing FX Series Forged Pistons deliver advanced technology and robust construction:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 6.1L Gen III Mopar Hemi engines used in Chrysler, Dodge, Jeep, and Ram SRT8 models\u003c\/li\u003e\n\u003cli\u003eCompacted height of 1.21 inches for optimal piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to optimize combustion chamber volume and compression ratio\u003c\/li\u003e\n\u003cli\u003ePin diameter of 0.927 inches, 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 superior sealing\u003c\/li\u003e\n\u003cli\u003eStroke compatibility of 3.578 inches and connecting rod length of 6.243 inches\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios available: 9.41:1 (65cc), 8.65:1 (74cc), and 7.9:1 (85cc) for tuning flexibility\u003c\/li\u003e\n\u003cli\u003eForged from high-strength alloy for enhanced durability under high stress and elevated temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe FX Series pistons are crafted using advanced forging techniques that ensure uniform grain structure and superior mechanical properties. This process results in pistons that resist cracking, scuffing, and thermal fatigue, even under extreme operating conditions. The forged alloy material provides an excellent strength-to-weight ratio, reducing reciprocating mass and improving engine responsiveness.\u003c\/p\u003e\u003cp\u003eThe pistons feature a carefully engineered dish top design with a precise volume to optimize combustion efficiency and control detonation. The ring grooves are machined to tight tolerances to accommodate high-performance piston rings, ensuring excellent sealing and oil control. Additionally, the wrist pin options allow for 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 DSS Racing FX Series Forged Pistons are direct replacements for factory pistons in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Installation requires standard engine rebuilding procedures and may involve balancing and blueprinting for optimal performance. The pistons are compatible with the factory stroke and rod length specifications, minimizing the need for additional modifications.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure proper ring end gap, piston-to-wall clearance, and wrist pin fitment. These pistons are ideal for engine builders seeking reliable, high-quality components for naturally aspirated or forced induction applications.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of 8 DSS Racing FX Series Forged Pistons\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\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\u003eThe DSS Racing FX Series Forged Pistons are perfect for performance enthusiasts, engine builders, and racers who demand durable, high-strength pistons for their 6.1L Mopar Hemi engines. Whether upgrading a street machine, preparing a track car, or building a reliable powerplant for daily driving, these pistons provide the foundation for improved power, efficiency, and engine longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008253140,"sku":"1-6845-4090D","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008285908,"sku":"2-6845-4090D","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":47381008318676,"sku":"3-6845-4090D","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":47381008351444,"sku":"K1-6845-4090D","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":47381008384212,"sku":"K2-6845-4090D","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":47381008416980,"sku":"K3-6845-4090D","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002100_4_0f32a855-c3d1-4cef-9689-9121f39dd21e.webp?v=1771667016","url":"https:\/\/fasthemis.com\/products\/6845-4090-6-1-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-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"}