Ross Racing Forged Aluminum Pistons Set

Chrysler / Dodge / Jeep / Ram 5.7L Hemi / 6.1L SRT8 / 6.4L 392 / 6.2L Hellcat & Trackhawk

99615

Overview:

The Ross Racing Forged Aluminum Pistons Set is engineered for high-performance Chrysler, Dodge, Jeep, and Ram engines, including the 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk variants. Designed to withstand the rigors of stroked engine builds, these pistons deliver enhanced durability and reliability under extreme conditions. Ideal for enthusiasts and professional builders seeking to upgrade their engine’s strength and efficiency, this set offers a perfect balance of lightweight construction and robust performance.

Each piston features a flat top design with two valve reliefs, optimizing combustion chamber dynamics for improved power output and efficiency. Sold as a complete set of eight, this kit includes piston rings to ensure a precise seal and reliable operation right out of the box.

Key Features:

Ross Racing pistons combine advanced engineering with premium materials to meet the demands of high-performance applications. Key features include:

• Forged aluminum construction for superior strength and reduced weight
• Flat top piston design with two valve reliefs for enhanced valve clearance and combustion efficiency
• Compatible with stroked engines featuring a 4.080 inch (103.632 mm) bore and 4.050 inch stroke
• Compression height of 1.085 inches for optimized piston-to-cylinder geometry
• Press-fit or floating wrist pin options with a 0.927 inch diameter for secure piston connection
• Includes piston rings with thicknesses of 1.20mm x 1.20mm x 3.00mm for effective sealing
• File fit design ensures precise ring groove fitment for durability and performance
• Sold as a set of 8 pistons, perfect for complete engine rebuilds or upgrades

Construction & Design:

Crafted from high-grade forged aluminum, these pistons offer an excellent strength-to-weight ratio, reducing reciprocating mass and improving engine responsiveness. The forging process enhances grain structure and mechanical properties, making them highly resistant to thermal and mechanical stress. The flat top design with dual valve reliefs provides optimal clearance for aggressive camshaft profiles while maintaining efficient combustion chamber volume, measured at +0.59cc.

The pistons are designed to fit engines with a 6.125 inch rod length, ensuring compatibility with popular stroker configurations. The wrist pins are designed for press-fit or floating installation, allowing flexibility depending on engine build preferences. Although wrist pins and retainers are not included, the pistons accommodate standard components for ease of assembly.

Installation & Fitment:

This piston set is engineered specifically for Chrysler, Dodge, Jeep, and Ram engines equipped with 5.7L Hemi, 6.1L SRT8, 6.4L 392, and 6.2L Hellcat & Trackhawk powerplants. Installation requires standard engine rebuild procedures, with attention to proper ring end gap and piston orientation. The file fit piston rings included must be carefully installed to ensure optimal sealing and longevity.

Due to the precision fitment and performance focus, professional installation is recommended to achieve the best results. This set is ideal for stroked engine builds with the specified bore and stroke dimensions, and it is important to verify compatibility with your specific engine model before purchase.

What's Included:

• Set of 8 forged aluminum pistons
• Piston rings included (1.20mm x 1.20mm x 3.00mm thickness)

Ideal For:

This piston set is perfect for performance enthusiasts, engine builders, and racers upgrading or rebuilding Chrysler, Dodge, Jeep, and Ram Hemi engines. Whether you are building a stroked 5.7L Hemi or pushing the limits of a 6.2L Hellcat or Trackhawk, these pistons provide the strength and precision needed for high-horsepower applications and reliable daily driving under demanding conditions.

Ross Racing Pistons manufactures forged aluminum pistons for serious motorsports and high-horsepower builds, offering both in-stock and fully custom piston programs for import and domestic engines. Family-run with decades of racing focus and U.S. manufacturing, Ross is a trusted choice when strength, precision machining, and reliability under boost or high RPM are non-negotiable.