🔪 Enhance Precision with COMP Cams 4726 .530 Valve Guide Cutter Review

Easy and quick cutting, the only thing I didn't like is that it only cuts the steam valve diameter and the height doesn't work, but it works fine.

Does not cut as advertised, cuts at .524 instead of .530. In combination with a larger valve stem seal than specified, the fit is too loose.

easy and fast cutting the only thing i didn't like is that it only cuts the diameter of the steam valve and doesn't work in height but it works fine.

These were used to cut valve guides on Vortec heads to get more valve seal clearance for a larger cam. It took a while to cut them all out, but it's better than taking the heads to the machine shop. Be sure to use a slow drill setting, as spinning too fast will heat the material up too much. I used a paint marker to cut all the guides at roughly the same height and a shop vacuum to vacuum up the shavings every few minutes.