Akerly-Childs AC-RC4250 Tapered Piston Ring Compressor 4.250 Inch Bore

The Akerly-Childs AC-RC4250 is a precision-engineered tapered piston ring compressor designed for 4.250 inch bore pistons. This professional-grade engine assembly tool is machined from billet aluminum and features a durable black anodized finish for long-lasting performance in demanding workshop environments.

Key Features:

• Tapered inner design compresses piston rings smoothly as the piston slides into the cylinder bore
• CNC-machined from high-quality billet aluminum for precision fit and durability
• Black anodized finish provides corrosion resistance and extended tool life
• Specifically sized for 4.250 inch bore applications
• Features step at bottom to clear block O-rings during installation
• Manufactured by Akerly & Childs, a Valencia, CA-based specialist in professional engine building tools

This piston ring compressor is an essential tool for engine builders working on performance, racing, marine, and street engines with 4.250 inch cylinder bores. The tapered design allows for quick, damage-free piston installation by gradually compressing the rings into their lands as the piston enters the cylinder, eliminating the risk of ring breakage or cylinder wall damage during assembly.