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Review on πŸ”ͺ Enhance Precision with COMP Cams 4726 .530 Valve Guide Cutter by Simo Ramsey

Revainrating 5 out of 5

Took a while but cheaper than the mechanical shop

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.

Pros
  • Engine Parts
Cons
  • Quick Instructions