{"product_id":"6857-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-945-comp-height-1-275","title":"DSS Racing FX Series Forged Piston Set 4.100\" Bore: Fits most Hemi Models","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eFits Chrysler, Dodge, Jeep, Ram 6.2L Hellcat \u0026amp; Trackhawk\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6857-4100 \/ 2-6857-4100 \/ 3-6857-4100 \/ K1-6857-4100 \/ K2-6857-4100 \/ K3-6857-4100\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOverview:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe DSS Racing FX Series Forged Piston Set is engineered specifically for high-performance applications in Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 6.2L Hellcat and Trackhawk engines. Designed to replace factory pistons, this set offers enhanced strength and durability to withstand the extreme pressures and temperatures generated by boosted and high-output powertrains.\u003c\/p\u003e\u003cp\u003eIdeal for enthusiasts and professional builders seeking reliable, race-ready components, these forged pistons improve engine longevity and performance consistency. Their precise dimensions and advanced design ensure optimal combustion efficiency and compatibility with stock and aftermarket components.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese pistons incorporate advanced engineering to meet the demands of modern high-performance Mopar engines:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 378 Small Block Mopar Hemi Gen III engines\u003c\/li\u003e\n\u003cli\u003e4.100\" bore size tailored for most 6.2L Hellcat and Trackhawk models\u003c\/li\u003e\n\u003cli\u003eCompact FX series design with a 1.275\" compression height for improved piston-to-cylinder fit\u003c\/li\u003e\n\u003cli\u003e+4cc dome top for enhanced combustion chamber volume and optimized compression ratios\u003c\/li\u003e\n\u003cli\u003e.945\" 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\u003eStroke compatibility at 3.578\" with a 6.2\" connecting rod length for balanced engine dynamics\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple dome volumes to achieve approximate compression ratios of 12.12:1 (65cc), 10.84:1 (74cc), and 9.64:1 (85cc)\u003c\/li\u003e\n\u003cli\u003ePrecision CNC machining ensures tight tolerances and consistent performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eConstruction \u0026amp; Design:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eManufactured from high-grade forged aluminum alloy, the DSS Racing FX Series pistons deliver exceptional strength-to-weight ratio essential for high-revving, forced induction engines. The forging process enhances grain structure and durability, reducing the risk of cracking or deformation under extreme conditions.\u003c\/p\u003e\u003cp\u003eThe pistons feature a dome top design with carefully calculated volume to optimize combustion efficiency and power output. The wrist pin bore supports both full-floating and press-fit pins, providing flexibility for various engine builds and preferences. Additionally, the ring grooves are precision cut to maintain ring seal integrity and reduce friction.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram 6.2L Hellcat and Trackhawk engines. Installation requires standard engine rebuild procedures, including proper honing and cleaning of the cylinder bores. Depending on the wrist pin configuration chosen, minor adjustments may be necessary to accommodate full-floating or press-fit pins.\u003c\/p\u003e\u003cp\u003eProfessional installation is recommended to ensure correct piston orientation, ring end gap settings, and torque specifications are met for optimal engine performance and reliability.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSet of forged pistons with 4.100\" bore size\u003c\/li\u003e\n\u003cli\u003eWrist pins (full-floating or press-fit options depending on SKU)\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression height, dome volume, and ring groove dimensions\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 performance enthusiasts, engine builders, and racers upgrading or rebuilding 6.2L Hellcat and Trackhawk engines who require durable, high-quality components capable of handling increased boost levels and aggressive tuning. It is especially suited for applications demanding improved strength and thermal resistance over stock pistons.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000618196,"sku":"1-6857-4100","price":739.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381000650964,"sku":"2-6857-4100","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":47381000683732,"sku":"3-6857-4100","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":47381000716500,"sku":"K1-6857-4100","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":47381000749268,"sku":"K2-6857-4100","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":47381000782036,"sku":"K3-6857-4100","price":1147.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002132_4_b07616cc-9f1f-4178-83e0-12bea77659ba.webp?v=1771667029","url":"https:\/\/fasthemis.com\/products\/6857-4100-6-2-small-block-mopar-hemi-gen-iii-fx-series-4cc-dome-top-gen-iii-hemi-forged-piston-set-4-100-inch-bore-pin-dia-0-945-comp-height-1-275","provider":"FastHemis","version":"1.0","type":"link"}