Very interesting, I've always heard about the 010 block being high nickel too.
So, does anyone know what the 010, 020 509 indicate on a block ?
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Mitch
1970 Chevelle SS
1966 Chevelle SS
1967 Camaro ss/rs
1938 Business coupe, street rod
2000 FXSTS, original owner, 13k miles
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