DSS Racing FX Series Forged Piston Set

Fits Most Chrysler / Dodge / Jeep / Ram 5.7L Hemi Models

1-6710-3947C / 2-6710-3947C / 3-6710-3947C / K1-6710-3947C / K2-6710-3947C / K3-6710-3947C

Overview:

The DSS Racing 5.7 Stroker Small Block Mopar Hemi Gen III FX Series Forged Piston Set is engineered for enthusiasts and builders seeking enhanced durability and performance in their 5.7L Hemi engines. Designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi models, these pistons provide a reliable upgrade for stroker builds and high-performance applications. With a compact design and precise specifications, this piston set supports increased stroke and compression ratios while maintaining excellent engine balance and longevity.

Ideal for those looking to maximize power output and engine efficiency, the DSS Racing forged pistons are crafted to withstand the rigors of high-boost, high-RPM environments without compromising reliability.

Key Features:

These forged pistons incorporate advanced design elements and materials to deliver superior performance and durability:

• Compatible with 3.795" stroke and 6.125" connecting rods for stroker engine builds
• Comp height of 1.21" optimized for Gen III FX Series Small Block Mopar Hemi engines
• 1.5cc flat top piston design for improved combustion efficiency
• .927" wrist pin diameter with options for full-floating or press-fit installation
• Ring groove dimensions of 1.2mm/1.2mm/3mm to accommodate high-performance piston rings
• Available in multiple compression volumes (65cc, 74cc, 85cc) supporting compression ratios from approximately 9.0:1 to 11.13:1
• Precision forged construction for enhanced strength and resistance to thermal and mechanical stress
• Designed specifically for the 5.7L Hemi Gen III platform ensuring perfect fitment and optimal performance

Construction & Design:

DSS Racing utilizes premium forged aluminum alloy in manufacturing these pistons, delivering a lightweight yet robust component capable of handling increased cylinder pressures and temperatures common in stroker and high-performance engines. The flat-top piston crown with a slight volume offset (-1.5cc) promotes efficient combustion and helps control detonation under boost or high compression conditions.

The pistons feature carefully engineered ring grooves and wrist pin bores to ensure durability and maintain tight sealing under extreme operating conditions. The option for full-floating or press-fit wrist pins allows builders to tailor installation to their specific engine setup and performance goals.

Installation & Fitment:

This piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi engines equipped with Gen III FX Series small block configurations. Installation requires matching the pistons with compatible rods and crankshafts, specifically accommodating a 3.795" stroke and 6.125" rod length. Proper ring end gap and clearance checks are essential to ensure reliable operation.

While these pistons are engineered for direct fitment in stroker builds, professional installation and engine blueprinting are recommended to maximize performance and longevity.

What's Included:

• Set of 8 DSS Racing forged pistons
• Wrist pins (full-floating or press-fit options depending on SKU)
• Optional piston rings available separately
• Installation instructions and technical specifications

Ideal For:

This piston set is perfect for engine builders, performance enthusiasts, and racers upgrading or rebuilding their 5.7L Hemi engines for increased displacement and power. Whether building a stroker motor for street, strip, or off-road applications, these pistons provide the strength and precision needed to handle elevated boost levels, higher compression ratios, and demanding operating conditions.

DSS Racing — Founded in 1983 originally as Danny’s Speed Shop, DSS Racing has grown from a small Midwest performance engine shop into a respected name in forged engine components for the high-performance and racing markets. Based in St. Charles, Illinois, DSS is best known for its forged pistons and machined engine parts made in the USA that have been used in championship engines and thousands of builds, blending old-school racing roots with precision manufacturing for enthusiasts and racers alike.