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Rebuilding motor new cam or not?

1223 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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In my experience with diesel engines with roller cam followers it is the roller bearing that is the fail point. The only cam I have lost in a similar motor as this was a 6.9, 290,000 miles, roller siezed, took out cam. Also another 7.3, same issue. If it were me I would replace the lifters. That is a lot of revolutions on those little wheels! There is not a cam/lifter worn in to each other/ don't swap or replace/ type situation on roller lifters since there is only rolling contact.
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