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Old 05-22-2016, 08:43 PM   #3
OrrieG
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Join Date: Jun 2006
Location: Idaho
Posts: 8,800
Re: Decipher serial number

The engine if its a SBC should have 3 letters after the number on the pad in front of the passenger head, like 999999 CTE. The first part matches the original vehicle vin, the last three are year and application specific. On the top of the block behind the driver head is the casting number and a date code. Date code has one letter and 2-3 numbers like C148, which would be March 14 1968 (or 78). Photos of the engine would help.
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