COMP Cams 5606 Deluxe Universal Overhead Valve Spring Compressor Easily removes valve springs on most overhead cam application Can be used with the cylinder heads on or off the engine Features a removable handle that allows for use with a 5/8 inches socket or wrench in confined areas and an extra-long leg for more applications Use with COMP Cams Air Operated Valve Holder (part no 5657) to pressurize the cylinder and keep the valves in place during removal of the springs and keepers