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Old 09-30-2012, 11:42 PM
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Choctaw Bob Choctaw Bob is offline
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I have a Chevy Small Block Parts Interchange Manual by Ed Staffel, SA Design Books.
It shows this casting number was used for 3 different engines:
1. A 1969 302 with 4 bolt mains in a Z-28 Camaro
2: A 1969 327 with 2 bolt mains in trucks and industrial engines
3. A 1969 thru 1980 2 or 4 bolt main in most anything on the assembly line.

The head number doesn't appear in my book.

Originally Posted by fordss View Post
Block numbers is 3970010
Head numbers is 3870126

If you could decode this it'd be most appreciated. Thanks
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