Akerly-Childs AC-RC4165 Piston Ring Compressor 4.165 Inch Bore

The Akerly-Childs AC-RC4165 is a precision-engineered piston ring compressor designed for 4.165-inch bore applications. Manufactured from aircraft quality 6061T6 heat-treated aluminum and hard anodized for long life, this professional-grade tool ensures reliable piston installation during engine assembly.

Key Features:

• Tapered design with billet aluminum construction and black anodized finish
• Machined with a step at the bottom to clear block o-rings when used
• Engineered to help your engine produce maximum horsepower
• Precision bore size of 4.165 inches for accurate fitment
• Durable construction suitable for professional engine builders

Piston installation is as important as any other procedure during engine assembly, which is why Akerly & Childs Xtreme Ring Compressors are manufactured with the engine builder in mind. This tool is ideal for drag racing, circle track, tractor pulling, and marine engine applications.