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Rebuilding motor new cam or not?

1221 Views 7 Replies 6 Participants Last post by  CBMSGOSS
Here the deal had a motor rebuilt, was supposed to have a new cam and crank. Well he decided the old cam with 350k miles was still good, less than .001 of wear. He is telling me the cam is billet steel and the cam is usually not replaced in these motors. Is that true? Thanks for any input.
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Oops! Camshaft [journals and lobes] are ground AFTER heat treatment. Do it the other way and you could end up with a nasty distortion.

Just being picky... but that's me! /ubbthreads/images/graemlins/wink.gif[Ex universal grinder/toolmaker]

Cheers! Roger S.

[/ QUOTE ]

Well, sometimes there's a 'green' (preheat-treat) grind, and a hard grind on rotatives. I'd suspect this to be the case given the eccentric and non-uniform cross section nature of the cams.

I can't ever remember hearing of a roller cam failing, but if you're in there for a complete rebuild, it'd me worth it (at least to me) just for the security to replace the lifters. But that's just my $.02

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