DSS Racing FX Series Forged Piston Set

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

1-6718-3957C / 2-6718-3957C / 3-6718-3957C / K1-6718-3957C / K2-6718-3957C / K3-6718-3957C

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 models equipped with the 5.7L Hemi, this piston set is ideal for stroker builds and high-performance applications.

These forged pistons offer superior strength compared to stock cast pistons, allowing for increased power handling and reliability under demanding conditions. Whether you are upgrading your engine for street performance, racing, or heavy-duty use, this piston set provides a solid foundation for your build.

Key Features:

Built with precision and performance in mind, the DSS Racing FX Series Forged Pistons include the following key features:

• Compatible with 373 Small Block Mopar Hemi Gen III stroker builds
• Comp Height: 1.21 inches for optimal piston-to-head clearance
• +9cc dome top design to increase compression ratio and combustion efficiency
• Piston pin diameter: .927 inches, suitable for full-floating or press-fit applications
• Ring groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing
• Stroke length: 3.795 inches, designed for 5.7L stroker configurations
• Connecting rod length: 6.125 inches for balanced rod-to-stroke ratio
• Compression ratio options based on combustion chamber volume: 65cc (12.92:1), 74cc (11.45:1), and 85cc (10.09:1)
• Forged construction for enhanced strength and durability under high stress

Construction & Design:

These pistons are crafted from high-quality forged aluminum alloy, providing exceptional strength-to-weight ratio and resistance to thermal expansion. The +9cc dome top design increases the compression ratio, improving combustion efficiency and power output. Precision machining ensures tight tolerances for optimal fitment and performance.

The piston pin bore supports both full-floating and press-fit configurations, offering flexibility depending on your engine build preferences. The ring grooves are designed to accommodate standard 1.2mm top and second rings with a 3mm oil ring, ensuring excellent sealing and oil control for reliable operation.

Installation & Fitment:

This piston set is engineered to fit most Chrysler, Dodge, Jeep, and Ram vehicles equipped with the 5.7L Hemi engine, particularly those utilizing a 373 stroker small block Mopar Hemi Gen III configuration. Installation requires standard engine assembly procedures and may necessitate professional machining to ensure proper clearances and fitment.

Due to the specialized nature of stroker builds, it is recommended that installation be performed by experienced engine builders or technicians familiar with high-performance Mopar Hemi engines.

What's Included:

• Set of forged pistons (quantity as per kit selection)
• Precision-machined piston pins
• Ring grooves pre-cut for standard piston rings

Ideal For:

This DSS Racing forged piston set is ideal for performance enthusiasts, engine builders, and racers looking to upgrade or rebuild their 5.7L Hemi engines with a reliable, high-strength piston solution. It is especially suited for stroker engine builds, forced induction setups, and applications demanding increased compression and durability.

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.