DSS Racing FX Series Forged Piston Set

Chrysler / Dodge / Jeep / Ram 5.7L Hemi Gen III

1-6708-3957 / 2-6708-3957 / 3-6708-3957 / K1-6708-3957 / K2-6708-3957 / K3-6708-3957

Overview:

The DSS Racing FX Series Forged Piston Set is engineered specifically for the 5.7L Small Block Mopar Hemi Gen III engines found in most Chrysler, Dodge, Jeep, and Ram models. Designed to accommodate a 5.7L stroker build with a 4.050" stroke and 6.125" rod length, these pistons offer enhanced strength and durability for high-performance applications. Featuring a +9cc dome top and a compression height of 1.09", this piston set is ideal for enthusiasts looking to increase engine efficiency and power output while maintaining reliability.

Whether you are building a street performance engine or a race-ready powerplant, the DSS Racing FX Series pistons provide the precision and quality needed to handle increased cylinder pressures and aggressive tuning.

Key Features:

These forged pistons incorporate advanced design elements to optimize performance and longevity:

• Forged construction for superior strength and resistance to detonation
• +9cc dome top design to increase compression ratio and combustion efficiency
• Compression height of 1.09" tailored for stroker applications
• Pin diameter of .927" compatible with full-floating or press-fit configurations
• Ring groove dimensions of 1.2mm/1.2mm/3mm for optimal ring seal and durability
• Designed for a 4.050" stroke crankshaft and 6.125" connecting rods
• Available in multiple dome volumes (65cc, 74cc, 85cc) to fine-tune compression ratios from 10.7 to 13.72
• Precision CNC machining ensures tight tolerances and consistent performance

Construction & Design:

The DSS Racing FX Series pistons are crafted from high-grade forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances the metal grain structure, resulting in pistons that withstand high combustion pressures and elevated temperatures common in performance engines.

The dome top design with a +9cc volume increases the compression ratio, improving power output and throttle response. The pistons feature carefully engineered ring grooves to accommodate performance ring sets, ensuring a reliable seal and reduced blow-by. The pin bore is designed for compatibility with both full-floating and press-fit wrist pins, offering flexibility for various engine builds.

Installation & Fitment:

This piston set is engineered to fit most Chrysler, Dodge, Jeep, and Ram 5.7L Hemi Gen III engines, particularly those utilizing a 5.7L stroker configuration. 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.

These pistons are compatible with 4.050" stroke crankshafts and 6.125" connecting rods, making them an excellent choice for stroked 5.7L Hemi builds aiming for increased displacement and power.

What's Included:

• Set of forged pistons (quantity as required for engine configuration)
• Precision-machined piston pin bores
• Ring grooves pre-cut for 1.2mm top and second rings, and 3mm oil ring

Ideal For:

• Performance enthusiasts upgrading or rebuilding 5.7L Hemi Gen III engines
• Engine builders seeking durable pistons for stroker 5.7L applications
• Street and track vehicles requiring enhanced compression and strength
• Custom Mopar builds aiming for improved power and reliability

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.