DSS Racing FX Series Forged Piston Set

Chrysler / Dodge / Jeep / Ram 6.1L SRT8

1-6823-4085 / 2-6823-4085 / 3-6823-4085 / K1-6823-4085 / K2-6823-4085 / K3-6823-4085

Overview:

The DSS Racing FX Series Forged Piston Set is engineered specifically for the 6.1L Gen III Hemi engines found in most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 models. Designed for enthusiasts and professional builders seeking enhanced durability and performance, these pistons offer a reliable upgrade over stock components. Whether you are rebuilding your engine or upgrading for increased power handling, this piston set delivers precision fitment and superior strength to withstand high-stress conditions.

With a focus on maintaining factory compatibility while improving reliability, the FX Series pistons provide an excellent balance of lightweight design and robust construction. They are ideal for street performance, track use, and forced induction applications where piston integrity is critical.

Key Features:

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

• Forged construction for superior strength and durability compared to cast pistons
• Comp height of 1.21 inches for precise deck clearance and compression control
• 12cc dish top design to optimize combustion chamber volume and compression ratio
• .984-inch wrist pin diameter with options for full-floating or press-fit installation
• Ring groove dimensions of 1.2mm top and second rings, and 3mm oil ring for effective sealing
• Compatible with 3.578-inch stroke crankshafts and 6.243-inch connecting rods
• Available in multiple dish volumes (65cc, 74cc, 85cc) to achieve compression ratios from 9.98:1 down to 8.28:1
• Precision CNC machining ensures tight tolerances and consistent performance
• Designed specifically for the 375 Small Block Mopar Hemi Gen III platform

Construction & Design:

The DSS Racing FX Series pistons are crafted from high-grade forged aluminum alloy, providing an optimal combination of light weight and high tensile strength. This construction improves engine response and reduces reciprocating mass, which contributes to enhanced durability under high RPM and boost conditions. The pistons feature a carefully engineered dish top to control compression and prevent detonation, making them suitable for a variety of tuning setups.

Each piston is CNC-machined to exacting standards, ensuring consistent ring groove dimensions and pin bore alignment. The option for full-floating or press-fit wrist pins allows builders to tailor the assembly to their specific engine build preferences. The ring grooves are designed to accommodate high-performance piston rings, promoting excellent sealing and oil control.

Installation & Fitment:

This piston set is designed as a direct fit replacement for most Chrysler, Dodge, Jeep, and Ram 6.1L SRT8 Gen III Hemi engines. Installation requires standard engine rebuild procedures and may involve balancing and blueprinting for optimal results. The pistons are compatible with factory connecting rods and crankshafts with a 3.578-inch stroke and 6.243-inch rod length. No major modifications are typically necessary, making these pistons a straightforward upgrade for performance builds.

What's Included:

• Set of forged pistons (quantity as required for engine configuration)
• Wrist pins (full-floating or press-fit options depending on SKU)
• Installation instructions and specifications

Ideal For:

The DSS Racing FX Series Forged Piston Set is ideal for performance enthusiasts, engine builders, and racers who demand enhanced strength and reliability from their 6.1L Gen III Hemi engines. Whether upgrading for forced induction, high compression naturally aspirated builds, or extended durability in street and track applications, these pistons provide a solid foundation for increased power and engine longevity.

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.