07-03-2006, 06:54 PM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
The top tag I believe is the cast number for your heads....1973 year.
I would assume the bottom tag is the block cast number.....1968 cast date....but I can't find any reference for an AZ-G part number.
I'll keep looking.
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