Re: GM undersize and oversize bearings. Original
I had a 3.48" steel 350 crank back in the 80s that I bought from a friend that was .009" under. It was stamped .009 and the Chevrolet parts book showed a factory bearing for it.
I am unware of the original application for the crank, but it was steel and not tuffrided.
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69 camaro X11, 56,000 miles, original HO paint
67 camaro SS/RS, Butternut yellow, bench, fold down
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