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Your cart is empty.Most high performance engines today require the use of larger-than-stock diameter valve springs. This .530 inch Valve Guide Cutter from COMP Cams will allow the engine builder to machine the cylinder head to the proper size for your spring. Each cutter requires the use of an arbor/pilot, which are available in three different sizes Cuts Guide 530 inch
Stephen Duleck
Reviewed in Australia on March 8, 2024
There was a chip in the cutting surface. As you can see in the picture near the pointer. I was pressed for time had to finish customers heads I used the cutter anyway. Not happy with the product.
Tarpapershack
Reviewed in the United States on February 24, 2024
Worked great! I only used it on one set of heads so I can't comment on longevity. But I can say it will last longer the better you know how to use this stuff. :)
Mr carter
Reviewed in the United States on June 28, 2023
I use this and in the first 5 minutes of second blade on top broke off I need to return it
70Cuda383
Reviewed in the United States on May 15, 2023
First time cutting valve guides for a 454 Iām building and this tool made it a breeze ! Pricy for a one time use but machine shop might even be more , great tool to own for future projects! Super sharp and used with my dewalt drill , no problem! Make sure you purchase the valve guide!
Joe
Reviewed in the United States on March 6, 2023
Liked it all the way around good tool
Chris P
Reviewed in the United States on July 3, 2021
Used these to cut down valve guides on Vortec heads to get more valve seal clearance for larger cam. Took some time to get them all cut down but better than taking the heads to a machine shop. Definitely use slow drill setting as spinning too fast will heat things up too much.I used a paint marker so all guides were cut about the same height, and a shop vac to suck up the shavings every few minutes.
James Sutton
Reviewed in the United States on May 26, 2021
Worked great. Make sure to use correct size pilot and cutting oil.
redsput
Reviewed in the United States on March 21, 2020
Quality tool, did the job.
new phone
Reviewed in Canada on June 11, 2018
Worked perfect
Mr. Young
Reviewed in the United States on May 5, 2015
tool worked well, the trick was to apply moderate pressure and a very slow drill speed for a smooth and even cut.
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