Paul,
Ok, so now there's more matching stamps to what there is on my heads.
Those two pics are of the opposite side of both heads showing "A" and "HC". I wonder if the HC has anything to do with the "H" slot rocker arms or does it designate High Compression? The next photos here show one shot of the intake side of the head with another "H", and the other shows what I think is a "D" on the exhaust side of the head.
I appreciate any info that others may have about this.
Rick
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Rick
69 Chevelle SS396 Silver L78 M21 Post Sedan (Berger Chev.)
69 Chevelle SS396 Black L78 4-speed 4.10 Post Sedan
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