How many different casting numbers are there for aluminum BBC heads?

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How many different casting numbers are there for aluminum BBC heads?

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05-22-2019, 06:05 PM

Igosplut Igosplut is offline

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I once had an 842 head that was a later GM issue (late 70s, early 80s I believe). It had a different texture to the cast (much different), and I could never find a mate to it

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