Re: Chevy OE cranks, cyl. heads.
I have always been told that an X was put into the core box when it was worn out.
Now, that could make sense or maybe there were some Racer types loose in the foundry who had found some really good core boxes and made sure that special projects used these pieces.
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Billy Nees 1188 STK, SS
World's greatest Under-Achiever!
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