Akerly & Childs 4.165" Xtreme Piston Ring Compressor TK12414 These brackets bolt to the

These brackets bolt to the head and top water pump bolt holes

1975-1981 Pontiac Bonneville

1-3/8 in OD Tubes

Easily remove these hold down nuts with a 1/4" extension

Akerly & Childs 4.165" Xtreme Piston Ring Compressor TK12414 These brackets bolt to thePiston 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