A buddy of mine has a '72 'Vette with a 350. We keep wiping cam lobes (Comp Cams kits, lifters, springs and cam). We do the proper break in @ 2000 rpms for about 20 minutes, use their assembly lube and even have added GM EOS. What gives?? The last one lasted for a week
The heads were just off, looking for bent valves or any other defects. They were even rebuilt this time. Proper lash has been set each time also. This time the lash was even set a little loose (Zero, the a 1/4 turn). Anyone have any ideas? It does appear that the lifters are rotating as they should.
I think we will give it one more try, then go with a roller.

I think we will give it one more try, then go with a roller.