Okay okay I have to put my $.02 worth. The location of the lifter bores are different from engine to engine (manufacturing tolerance) so I think that the lifters and or cam will wear differently and no way would I chance having to tear it down again!

  Vic Correnti

Vic:

Now you have given me something else to think about while I'm staged and waiting for the lights to come down.  I have used the same '70s after market cam and lifters in 3 or 4 different blocks without giving thought to lifter bore/cam bore relationships possibly varying.  However, so far so good.

John - "The Hoosier Hurricane"

all this talk about cam wear has everybody running scared.everyone mixed old cams and lifters in all directions in the past didn matter what engine.the only bad lifter was one that showed wear.an old mechanic friend who is about 75 now ran a stock car for 10 years on the last dirt track around here.58 ford 312.he put a new cam in it just a mild ond and a used set of lifters.it never failed.to much caution ruins a good thing.

I can't see what all the panic and fuss is about.

It's not rocket science. There is a round hole and you have a round lifter that is microscopically smaller than the hole. Put it in!!!

In my Chev race boat engines, if I had a lifter failure I just rip it out and throw another one in and back racing again.

Even lifter bores that had been gouged a bit could be saved with a brake cylinder hone.


Gary - 1958 Star Customline and 1940 Ford Deluxe Hotrod

Yeah, this was my concern. Even though the cam will move fore and aft a slight amount, I suspect there would be a different wear pattern set up with the lifters in different blocks. "Tear it down again" Yes, especially with the captured lifters.

ray

i am sure no two blocks are the same but thats my point.lots of people are changing them and they are lasting just fine.if you got money to burn go ahead and use new parts ill stick to used.