Akerly & Childs 4.125" Xtreme Piston Ring Compressor 711001 22-3/4 in Long

22-3/4 in Long

Adjustable Axle Gear Ratio

The Top Air System can be fitted onto ST5 Formula and GT models

The exhaust port and bolt pattern are raised

Features Aeromotives high-flow design

Akerly & Childs 4.125" Xtreme Piston Ring Compressor 711001 22-3/4 in LongPiston 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