Originally Posted By dogdays
THE RULE IS:

Used lifters go only on the exact lobe they came off of and never on a new cam.

New lifters are OK on a used cam.

New lifters ONLY on a new cam.

This has been the standard for more than 40 years, to back when I was reading Fischer and Waar.

Other things MAY work if the spring pressures are stock or close and you are lucky.

The only two reasons to replace a camshaft are:
1. You want a different one for change in performance/operating characteristics.
2. The lobes show damage, either pitting or rounding or have varying measurements when measured across the max lift point.

R.



Thanks! I have read similar responses. And I just realized I am missing one lifter so I guess re-using the old lifters is completely out of the question. So what do I need to know when buying new lifters?

I'll take a solid look at the cam later to see if the lobes still share the same shape, roundness/lift point, pitting, etc.

So what do I need to know when buying new lifters?