DSS Racing FX Series Forged Piston Set

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

1-6706-3937 / 2-6706-3937 / 3-6706-3937 / K1-6706-3937 / K2-6706-3937 / K3-6706-3937

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 for their 5.7L Hemi engines. Designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi models, this piston set is ideal for stroker builds and high-performance applications. Featuring a forged construction and precise specifications, these pistons deliver reliable strength and improved combustion efficiency for both street and track use.

Whether you are upgrading your engine for increased power output or rebuilding for longevity, the DSS Racing FX Series pistons provide a robust foundation to handle increased stroke and compression demands without compromising reliability.

Key Features:

These pistons incorporate advanced design elements and quality materials to meet the rigorous demands of performance engines:

• Compatible with 394 Small Block Mopar Hemi Gen III engines with a 4.050" stroke
• Forged construction for superior strength and durability under high stress
• Comp height of 1.09" for optimal piston-to-deck clearance
• 23cc dish top design to control compression and improve combustion
• .927" wrist pin diameter with options for full-floating or press-fit pins
• Ring groove dimensions of 1.2mm/1.2mm/3mm for effective sealing and reduced friction
• Designed to work with 6.125" connecting rods for stroker applications
• Available in multiple dish volumes (65cc, 74cc, 85cc) to achieve approximate compression ratios from 7.96:1 to 9.4:1
• Precision engineered to maintain tight tolerances and consistent performance

Construction & Design:

DSS Racing pistons are crafted from high-quality forged aluminum alloy, providing an excellent balance of strength and lightweight characteristics essential for high-revving engines. The forged design enhances resistance to heat and mechanical stress, reducing the risk of piston failure during aggressive driving or racing conditions.

The dish top design with a -23cc volume helps manage compression ratios, allowing builders to tailor engine performance to their specific needs. The pistons feature carefully machined ring grooves and wrist pin bores to ensure proper ring seal and wrist pin fitment, contributing to overall engine efficiency and longevity.

Installation & Fitment:

This piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi engines equipped with the Gen III small block Mopar Hemi platform. Installation requires standard engine rebuild procedures, including precise measurements and clearances to ensure optimal piston-to-cylinder wall and piston-to-valve clearance.

Builders should verify compatibility with their specific stroker kit and connecting rods, as these pistons are optimized for a 4.050" stroke and 6.125" rod length. The choice between full-floating or press-fit wrist pins allows customization based on engine build preferences.

What's Included:

• Set of forged pistons (quantity as required for engine configuration)
• Wrist pins (full-floating or press-fit, depending on selected option)
• Ring sets matching the specified groove dimensions
• Installation instructions and technical specifications

Ideal For:

This piston set is perfect for engine builders and performance enthusiasts upgrading or rebuilding their 5.7L Hemi engines for increased displacement and power. It suits stroker engine builds, high-performance street vehicles, and light racing applications where durability and precise compression control are critical.

Whether you are enhancing a daily driver or constructing a dedicated performance machine, DSS Racing FX Series forged pistons provide the reliability and engineering precision needed to maximize your 5.7L Hemi’s potential.

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.