Ive always treated my lifters and cams as matched sets on any engine I've built or played with, as you should. Unfortunately doing this leaves me with no experience as to how long it takes a set of fresh lifters to munch a old camshaft. Something I'd like to know. I ask this question with regards to a cheap V8 parts chaser I'm using while the K5 gets restored,....... Dont worry I wouldnt do this with any engine I want to hang on to or depend on for DD or expedition duties. Has anyone got any experiences they can share? I'm looking for input from guys who build their own engines and have first hand observations.