DSS Racing FX Series Forged Piston Set

Fits Chrysler / Dodge / Jeep / Ram 6.1L SRT8 Models

1-6805-4065 / 2-6805-4065 / 3-6805-4065 / K1-6805-4065 / K2-6805-4065 / K3-6805-4065

Overview:

The DSS Racing 6.1 Stroker Small Block Mopar Hemi Gen III FX Series Forged Piston Set is engineered for enthusiasts and builders seeking durable, high-performance pistons tailored specifically for Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to accommodate the 420ci Small Block Mopar Hemi Gen III with a 4.050" stroke and 6.125" rod length, these pistons deliver reliable strength and precision fitment for stroker builds and performance upgrades.

Ideal for street performance, track applications, and serious rebuilds, this piston set offers enhanced durability and improved combustion efficiency, supporting higher compression ratios and aggressive tuning without compromising engine longevity.

Key Features:

These forged pistons incorporate advanced design elements and manufacturing techniques to ensure optimal performance and reliability:

• Compatible with 6.1L SRT8 engines from Chrysler, Dodge, Jeep, and Ram
• Forged construction for superior strength and resistance to high-stress conditions
• Comp height of 1.09" for precise deck clearance and piston-to-head fitment
• 18cc dish top design to optimize combustion chamber volume and compression ratio
• .927" wrist pin diameter with options for full-floating or press-fit configurations
• Ring groove dimensions: 1.2mm top and second rings, 3mm oil ring for effective sealing
• Designed for a 4.050" stroke and 6.125" connecting rod length, ideal for stroker builds
• Available in multiple dish volumes to achieve approximate compression ratios of 10.41:1 (65cc), 9.56:1 (74cc), and 8.72:1 (85cc)

Construction & Design:

DSS Racing pistons are crafted from high-quality forged aluminum alloy, providing an excellent balance of lightweight strength and thermal conductivity. The forging process enhances grain structure, resulting in pistons that withstand the rigors of high-performance and forced induction applications. The dish top design reduces detonation risk while allowing flexibility in compression ratio tuning.

Precision machining ensures tight tolerances for wrist pin fitment and ring grooves, promoting consistent sealing and reduced friction. The option for full-floating or press-fit wrist pins allows customization based on engine build preferences and durability requirements.

Installation & Fitment:

This piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines equipped with the Small Block Mopar Hemi Gen III platform. Installation requires standard engine rebuild procedures, including proper ring end gap setting, wrist pin installation, and piston orientation. Due to the stroker configuration and specific piston dimensions, professional installation is recommended to ensure optimal clearances and engine performance.

What's Included:

• Set of forged pistons (quantity as per engine requirements)
• Wrist pins (full-floating or press-fit options depending on SKU)
• Piston rings with specified groove dimensions
• Installation instructions and technical specifications

Ideal For:

This piston set is perfect for performance enthusiasts, engine builders, and racers upgrading or rebuilding 6.1L SRT8 engines who demand enhanced strength, reliability, and tuning flexibility. Whether building a stroker motor for street, strip, or track use, these pistons provide a solid foundation for increased power 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.