Project 68 The Great One

[SPECWARSQUID]

Sorry Andrew, I guess you'll just have to stick to your Big Block Chevys and LSX motors (just kiddin).

From:
http://www.pontiacpower.net/castnum01.html

Pontiac engines have block code. This code will tell you the year it was to be used. However, these codes were used over from year to year. Together with the casting code and cating date you can determine where what the engine is. Starting in 1965 Pontiac began using a 2 digit letter code. Above the 2 digit code will be the motor unit number, which is either 6 or 7 digits. It is important to note that it is not related to the VIN number. As a general rule, "W" coded blocks are manual transmission and "Y" coded blocks are automatics. And most of the "Z" coded blocks are also auto. The "X" coded blocks are a little of both.

The Engine codes will be found on the front of passengers side of the block, below the head. Above the 2 digit code will be the motor unit number, which is either 6 or 7 digits. It is not related to the VIN number.

The VIN on Pontiac engines is located vertically just to the left of the passenger side of the Timing cover.

The block VIN and the vehicle VIN were the same, but by late 1967 the block VIN was revised. It started out with a 2 (for Pontiac), the last digit of the year and a letter for the assembly plant followed by the last 6 digits of the vehicle VIN. It was located on the front of the block, on the passengers side, at the bottom near the timing cover.

Common assembly letters are: A = Alanta, B = Baltimore, C (or S) = Califorina/Southgate, E = Linden, NJ, G = Framingham, MA, K = Kansas City, MO, L = Van Nuys, R = Arlington, TX, x = Kansas City, KN, 1 = Oshawa, Ont. Z = Fremont, CA.
*Note* This number sometimes is stamped very lightly and may be hard to read as seen in this picture. It is also interesting that this block has the VIN stamped twice on it.

(picture is sideways)




My theory is that someone ground off the 6 digit unit number thinking it was the VIN ala the Small Block Chevys. Codered has a picture of the faint but intact VIN located next to the timing cover.


Shay
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Semper Fortis