Yes, I read that somewhere earlier and I have not measured it but I believe that part is the original.
I think that what probably happened and what explains the Chevy wp pulley is that whenever someone changed the wp to the 11 bolt, 4.5" snout, they found that the original pulley no longer lined up. They dug up the Chevy pulley somewhere to get everything back aligned. The size works as far as diameter and depth but the pulley groove is more narrow. Because of that, when I replaced the belt with the correct one, it opened this can of worms when I noticed that the wider belt was sitting too high in the wp groove but ok everywhere else.
I will measure the crank pulley. If it's the wrong one, I'll replace that one too.
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Greg Reid
Palmetto, Georgia
 
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