Akerly-Childs AC-RC4320 Piston Ring Compressor 4.320 Inch Bore

The Akerly-Childs AC-RC4320 is a precision-engineered piston ring compressor designed for 4.320 inch bore pistons. This professional-grade tool is essential for engine assembly, ensuring proper installation of piston rings without damage during piston insertion into the cylinder bore.

Key Features:

• Machined from aircraft-quality 6061-T6 heat-treated billet aluminum for exceptional strength and durability
• Hard anodized black finish provides superior wear resistance and extended tool life
• Tapered design allows for smooth, controlled piston insertion
• Machined step at the bottom clears block O-rings during installation
• Precision bore sizing ensures proper compression of piston rings
• Designed specifically for 4.320 inch bore applications

Backed by over 50 years of racing industry experience, Akerly-Childs manufactures tools trusted by professional engine builders in drag racing, circle track, marine, and other high-performance applications. This ring compressor simplifies one of the most critical procedures in engine assembly, protecting both your pistons and cylinder walls during installation.