Quote:
Originally Posted by iuhoops83
Hey, 70OldsW30, that latest post is the best info I've seen on VIN descriptions. Is this the same for a 1971 Cutlass? I'm trying to better understand my VIN. My car has an aftermarket 4bbl and manifold. I'm trying to determine if the orignal is 2bbl or 4bbl. Thanks. Larry
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You won't get that from the VIN. Olds changed the VIN configuration starting with the 1972 model year to include the engine designator. This was done due to increasingly strict EPA requirements on emissions certification. Prior to 1972 there was no indication of the engine in the VIN (other than six cylinder vs. eight).
By the way, this is also why 1972 uses the letter designations for model instead of the Fisher body two digit designations. Concatenating the two digits into a single letter freed up a position in the VIN for the engine code.