{"product_id":"6847-4100-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-927-comp-height-1-21","title":"DSS Racing FX Series +4cc Dome Top Forged Piston Set: Fits Dodge \/ Chrysler \/ Jeep 6.1L SRT8","description":"\u003ch3\u003eDSS Racing FX Series +4cc Dome Top Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Most Chrysler \/ Dodge \/ Jeep \/ Ram 6.1L SRT8 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6847-4100D \/ 2-6847-4100D \/ 3-6847-4100D \/ K1-6847-4100D \/ K2-6847-4100D \/ K3-6847-4100D\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series +4cc Dome Top Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines, delivering enhanced performance and reliability. Designed to fit most 6.1L SRT8 models, these pistons are ideal for enthusiasts seeking to upgrade their engine’s durability and compression ratio for improved power output.\u003c\/p\u003e\u003cp\u003eBuilt with precision and attention to detail, this piston set offers a +4cc dome top design that increases the compression ratio, optimizing combustion efficiency. Whether you are rebuilding your engine or upgrading for higher performance applications, these pistons provide a solid foundation for sustained power and longevity.\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 Mopar Hemi engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 378 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003e+4cc dome top design for increased compression and power\u003c\/li\u003e\n\u003cli\u003eComp height of 1.21 inches for precise piston-to-head clearance\u003c\/li\u003e\n\u003cli\u003ePin diameter of .927 inches, available in full-floating or press-fit options\u003c\/li\u003e\n\u003cli\u003eRing groove dimensions: 1.2mm top and second rings, 3mm oil ring\u003c\/li\u003e\n\u003cli\u003eOptimized for a 4.100\" bore and 3.578\" stroke\u003c\/li\u003e\n\u003cli\u003eRod length compatibility of 6.243 inches\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios vary by combustion chamber size: 65cc (12.12:1), 74cc (10.84:1), 85cc (9.64:1)\u003c\/li\u003e\n\u003cli\u003eDurable forged construction for enhanced strength and heat resistance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eDSS Racing’s FX Series pistons are crafted from high-quality forged aluminum alloy, providing superior strength and thermal conductivity compared to cast pistons. The dome top design increases the compression ratio, improving combustion efficiency and power output without compromising reliability.\u003c\/p\u003e\u003cp\u003eThe pistons feature precision-machined ring grooves and pin bores to ensure optimal ring seal and wrist pin fitment. The option for full-floating or press-fit pins allows customization based on engine build preferences. This meticulous engineering supports high RPM operation and aggressive driving conditions typical of SRT8 performance applications.\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, including proper honing and cleaning of the cylinder bores. The choice between full-floating or press-fit wrist pins should be matched to your engine’s specifications and performance goals.\u003c\/p\u003e\u003cp\u003eDue to the increased compression ratio, it is recommended to verify compatibility with your engine’s fuel and tuning setup to avoid detonation. Professional installation is advised to ensure optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged +4cc dome top pistons (quantity as per engine requirements)\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit, depending on selected option)\u003c\/li\u003e\n\u003cli\u003eCirclips or retaining hardware for wrist pins\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 Mopar enthusiasts and professional engine builders looking to upgrade or rebuild their 6.1L SRT8 engines. It suits applications ranging from street performance to track use where increased compression and durability are desired. Ideal for those aiming to extract more power while maintaining engine reliability under demanding conditions.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002453204,"sku":"1-6847-4100D","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381002485972,"sku":"2-6847-4100D","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":47381002518740,"sku":"3-6847-4100D","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":47381002551508,"sku":"K1-6847-4100D","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":47381002584276,"sku":"K2-6847-4100D","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":47381002617044,"sku":"K3-6847-4100D","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002124_4_97df2439-b3d5-488e-bd39-90efca90c391.webp?v=1771667026","url":"https:\/\/fasthemis.com\/products\/6847-4100-6-1-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-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"}