Speedmaster PCE428.1003 4.250

This Speedmaster PCE428.1003 aluminum adjustable piston ring compressor is engineered for precise engine rebuilding and assembly work. The adjustable design accommodates piston sizes between 4.250" and 4.310", allowing a single tool to fit multiple applications across small-block and mid-size engines. Built from aluminum for lightweight handling and durability, it compresses piston rings securely during installation to prevent damage to cylinder walls and ensure proper seating.

Ideally suited for engine builders, mechanics, and restoration enthusiasts, this ring compressor simplifies the installation process by holding rings in a compressed state as the piston slides into the cylinder bore. The adjustable mechanism eliminates the need for multiple fixed-size tools, reducing inventory costs while maintaining precise control and reliability for both professional shops and weekend projects.

Key Features & Benefits

• Adjustable Design: Fits piston sizes from 4.250" to 4.310", reducing the need for multiple compressors.
• Aluminum Construction: Lightweight yet durable material for reliable performance and easy handling.
• Engine Assembly Ready: Specifically designed to safely compress piston rings during cylinder installation.
• Precision Fit: Secures rings without damage to ensure proper engine seal and performance.

Specifications

Ideal Applications

• Small-block and mid-size engine rebuilds and assembly
• Professional machine shop piston and ring installation
• Engine restoration and repair projects
• Custom engine builds and modifications