{"product_id":"6845-4100-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-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 Piston Set 4.100\" Bore: Chrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 (All)","description":"\u003ch3\u003eDSS Racing FX Series Forged Piston Set\u003c\/h3\u003e\u003cp\u003eChrysler \/ Dodge \/ Jeep \/ Ram 6.4L 392 Models\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e1-6845-4100C \/ 2-6845-4100C \/ 3-6845-4100C \/ K1-6845-4100C \/ K2-6845-4100C \/ K3-6845-4100C\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 6.4L 392 HEMI engine. Designed to fit most 6.4L 392 models, these pistons offer a precise 4.100\" bore size and are built to withstand the rigors of aggressive street driving, track use, and racing environments.\u003c\/p\u003e\u003cp\u003eCrafted for enthusiasts and professional builders alike, this piston set enhances engine durability and reliability while supporting increased power output. The FX Series pistons are an ideal upgrade for those seeking to improve engine efficiency, reduce reciprocating mass, and maintain tight tolerances under high stress.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThese forged pistons incorporate advanced design elements and manufacturing techniques to deliver superior performance and longevity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompatible with 393 Small Block Mopar HEMI Gen III engines\u003c\/li\u003e\n\u003cli\u003eCompacted height of 1.21\" for optimized piston-to-deck clearance\u003c\/li\u003e\n\u003cli\u003e18cc dish top design to control compression ratio and combustion dynamics\u003c\/li\u003e\n\u003cli\u003e.927\" wrist pin diameter available in full-floating or press-fit configurations\u003c\/li\u003e\n\u003cli\u003ePrecision ring grooves sized at 1.2mm (top and second) and 3mm (oil ring) for excellent sealing\u003c\/li\u003e\n\u003cli\u003eStroke length of 3.720\" matched to a 6.2\" connecting rod for balanced performance\u003c\/li\u003e\n\u003cli\u003eApproximate compression ratios tailored to combustion chamber volumes: 65cc (9.79), 74cc (9.0), and 85cc (8.21)\u003c\/li\u003e\n\u003cli\u003eForged from high-strength materials to resist heat and mechanical stress\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 forged from premium-grade aluminum alloy, providing an ideal balance of strength, weight, and thermal conductivity. The forging process ensures a dense, uniform grain structure that enhances fatigue resistance and durability under extreme operating conditions.\u003c\/p\u003e\u003cp\u003eEach piston features a carefully engineered dish top with an 18cc volume reduction to optimize combustion chamber shape and reduce detonation risk. The wrist pin bore is precision-machined to accommodate either full-floating or press-fit pins, allowing builders to customize assembly based on application needs. Ring grooves are designed to maintain ring seal integrity while minimizing friction and wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation \u0026amp; Fitment:\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThis piston set is designed for direct fitment in most Chrysler, Dodge, Jeep, and Ram 6.4L 392 HEMI engines, making it a straightforward upgrade for engine rebuilds or performance enhancements. Installation requires standard machining and assembly procedures consistent with high-performance engine builds. Proper ring end gap and piston-to-wall clearance should be verified during installation to ensure optimal 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 pistons with 4.100\" bore size\u003c\/li\u003e\n\u003cli\u003eWrist pin options: full-floating or press-fit\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves ready for standard piston rings\u003c\/li\u003e\n\u003cli\u003eDetailed specifications for compression ratios and piston dimensions\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 who demand reliable, high-strength components for their 6.4L 392 HEMI-powered vehicles. Whether upgrading a street machine, preparing a drag or road racing engine, or building a durable daily driver with enhanced power, the DSS Racing FX Series pistons provide the foundation for improved engine performance and longevity.\u003c\/p\u003e","brand":"DSS Racing","offers":[{"title":"FX-1 4032 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008449748,"sku":"1-6845-4100C","price":689.95,"currency_code":"USD","in_stock":true},{"title":"FX-2 2618 Alloy \/ Pistons - Pins and Locs Without Rings","offer_id":47381008482516,"sku":"2-6845-4100C","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":47381008515284,"sku":"3-6845-4100C","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":47381008548052,"sku":"K1-6845-4100C","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":47381008580820,"sku":"K2-6845-4100C","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":47381008613588,"sku":"K3-6845-4100C","price":1087.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/8542\/1268\/files\/0002099_4_99abf788-4341-49f6-923e-7b445b5676a4.webp?v=1771667015","url":"https:\/\/fasthemis.com\/products\/6845-4100-392-6-4-small-block-mopar-hemi-gen-iii-fx-series-18cc-dish-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"}