That’s not accurate at all with respect to an in-line early chevy 6. Yes, a regrind does reduce the heal of the cam a bit in order to get the new shape ground in, but no, it does not screw up the geometry on an early in-line 6, or even close to the extent you have described. Plenty of adjustment to compensate and the regrinds work just fine. How do I know this? Because I have used at least a dozen of them over the years in my 235 and 261 builds, including a couple that Chet Herbert reground for me. You might remember his ads in hot rod magazine that he would regrind any cam with any grind for 39.50. I still have the last cam he ground for me in 1985, the receipt for that cam, and it’s still in the motor I put it in. Stock rockers, stock pushrods, stock solid lifters. Never a moments trouble, and truth be told, it was a very good cam, sounded great and ran great and I was not all that gentle with that motor. So no, I don’t agree with that pronouncement at all. A regrind is an alternative.
