Man I must be buying the wrong 360 blocks because on the last two blocks I've used with Comp 829 roller lifters I have had lots of grinding to get them in. And I'm not talking polishing rolls, carbide burrs
Maybe it is because you are putting the big block 829 lifters in when you should be using the small block 828-16s. The 828-16s are close but they fit.
The 828-16s are close but they fit. 
