Camshaft Lobe

[WIDESIDE72]

There was nothing exotic or special about the engines I built either. Standard deal of .030 overbore, cast pistons and crank, not balanced or blueprinted. The 383 did get forged parts, and balanced, all the more reason to be careful with the cam break in. ($$$) IMO, if you continue to run that cam, you can plan on replacing the crank as well. Did you use new lifters, or lifters that had been run with that cam in the past, with them indexedso tht they were put with the lifters matching the lobes they were originally used with? This is a good example of why it is never worth using a used cam. $100 is too cheap to go buy a new cam and not take a chance wasting your motor with metal filings from a cam going bad.