DSS Racing Forged Piston Set

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

1-6801-4075 / 2-6801-4075 / 3-6801-4075 / K1-6801-4075 / K2-6801-4075 / K3-6801-4075

Overview:

The DSS Racing 6.1 Stroker Gen III Hemi Forged Piston Set is engineered specifically for the Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines. Designed to accommodate a 4.075" bore, these pistons are ideal for enthusiasts looking to upgrade their 423 Small Block Mopar Hemi Gen III powerplants with a reliable, high-performance stroker setup. Crafted for durability and precision, this piston set supports a 4.050" stroke and is compatible with full-floating or press-fit wrist pins, making it a versatile choice for engine builders seeking to maximize power and efficiency.

Whether you are building a street performance engine or a race-ready powerplant, these forged pistons offer the strength and design features necessary to handle increased cylinder pressures and higher RPMs while maintaining excellent combustion characteristics.

Key Features:

This piston set combines advanced engineering with quality materials to deliver superior performance and reliability. Key features include:

• Forged construction for enhanced strength and durability under high-stress conditions
• 1.09" compression height optimized for Gen III Hemi engines
• 7cc dish top design to control compression ratio and improve combustion
• .927" wrist pin diameter compatible with full-floating or press-fit configurations
• Ring groove dimensions of 1.2mm / 1.2mm / 3mm for reliable ring sealing and reduced friction
• Designed for a 4.075" bore size, fitting most 6.1L SRT8 applications
• Stroke compatibility of 4.050" with a 6.125" connecting rod length
• Available in multiple dish volumes (65cc, 74cc, 85cc) to achieve approximate compression ratios of 11.75, 10.68, and 9.61 respectively

Construction & Design:

Each piston is precision forged from high-grade aluminum alloy, ensuring a lightweight yet robust component capable of withstanding the rigors of high-performance use. The forged design enhances fatigue resistance and thermal conductivity, which helps maintain structural integrity under elevated temperatures and pressures typical of stroker builds.

The dish top design reduces compression to prevent detonation while optimizing combustion chamber shape for efficient burn. The piston pin bore is engineered to accept either full-floating or press-fit pins, providing flexibility depending on engine build preferences. Additionally, the carefully machined ring grooves accommodate performance piston rings that maintain excellent sealing and reduce blow-by.

Installation & Fitment:

This piston set is designed to fit most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 engines with a 4.075" bore and a 4.050" stroke configuration. Installation requires standard engine assembly procedures and may necessitate professional machining and balancing to ensure optimal performance and longevity. The pistons are compatible with existing Gen III Hemi components, making them a direct upgrade for stroker engine builds without extensive modifications.

What's Included:

• Set of forged pistons sized for 4.075" bore
• Compatible wrist pin bore for full-floating or press-fit pins
• Precision-machined ring grooves
• Multiple dish volume options for compression ratio tuning

Ideal For:

This piston set is ideal for performance enthusiasts, engine builders, and racers who are upgrading or rebuilding Chrysler, Dodge, Jeep, or Ram 6.1L SRT8 engines. It is particularly suited for stroker engine configurations aiming to increase displacement and power output while maintaining reliability and efficiency. Whether for street performance, drag racing, or track applications, these forged pistons provide a solid foundation for high-performance builds.

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.