Magnum Head Valve Spring Compressor

The tool fits on standard magnum heads with stock springs. Upgraded springs like Hughes won't fit unless you grind the neck down to about 1/2 the width. The included bolt is too soft and ends up destroying the threads. Lots of messing around. It is easier to use the 2 jaw style with the handle on top and use a hose clamp to keep the jaws from popping out.