Akerly & Childs 4.020" Xtreme Piston Ring Compressor 20-OTL-NG GM Metric Frames

GM Metric Frames

8 AN Hose to 8 AN Female O-Ring

7 in Top Diameter

Valve Spring

This filter requires no oils and cleans with soap and water for maximum convenience

Akerly & Childs 4.020" Xtreme Piston Ring Compressor 20-OTL-NG GM Metric FramesPiston installation is as important a procedure as any other during engine assembly. That is why Akerly & Childs Xtreme ring compressors are manufactured with the engine builder in mind. All compressors are machined with a step at the bottom to clear block o rings when used. Xtreme compressors are manufactured from aircraft quality 6061T6 heat treated aluminum and then hard anodized for long life. Akerly & Childs over 50 years experience in racing