anyone help decode an engine

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02-09-2010, 10:05 AM

malibu6878

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anyone help decode an engine

it is a big block chevy casting number is 3969354,(have picture)not 9854,, and the pad # is T0301CLB, I come up with 69-72 402, how can I tell what year exactly is this engine? any help will be appreciated.

02-09-2010, 10:16 AM

midsouthhotrods

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i looked the casting number up and it says it was a big block from 72.

02-09-2010, 03:17 PM

BEAST477

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On the side of the block there will be a casting date.
Example C 24 0 . C third letter means 3rd month 24 day of the month 0 is the year 1970. Hope that helps.