Originally Posted by 2INSANE I have seen 1981 stamped on a few red blocks. https://www.dieselplace.com/threads/...-block.340496/ Still having a hard time trying to find one. :-/ They were unique to the 1982 model year. Of course, they were cast in 1981. I would expect, probably most of them were cast in 1981.
1985 Blazer 6.2 2001 GMC 2500HD D/A dmaxmaverick@thedieselpage.com
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