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You can see the marks, can you feel them with your finger?
yes, with the caveat that I'd measure the lift and see if the peak has been worn any [even just compare it with other lobes for the port (intake or exhaust)].
The wear pattern although my be only visual it is identifying a potential issue that was likely with the donor engine valvetrain and secondly and new cam is cheap insurance.
Well...Hot Rods aren't cheap unfortunately, this guy had initially offered to sell them to me for a really good price (before they were out of his car).
My gut's saying to pass on them...shame, they were such a good deal.
It's not normal for the cam to look like that, it looks like that because the roller lifter running on it wasn't rolling like it should [jammed, didn't get oil, failed].
If the lobe is smooth and the right height, it's fine. There's nothing for the new roller-lifter to catch on, and the cam isn't going to break in half because of this.
If you want to use the rest of the motor, I'd figure out why the lifter failed [did it fail on it's own, was it getting oil, rest of the lifters are ok].
To me, if the lobe height is the same as the rest, there's no way for those markings to cause a problem running the cam in another engine with lifters that are working properly..
Well...Hot Rods aren't cheap unfortunately, this guy had initially offered to sell them to me for a really good price (before they were out of his car).
My gut's saying to pass on them...shame, they were such a good deal.
Look at it this way......a destroyed valvetrain & heads is $2k....new cam & kit...$400...cheap insurance....also, while the lifter appears to be the blame/cause, let's not forget the potential for metal fatigue in that cam lobe itself.
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