1968 AND NEWER V8
VIN STAMPING LOCATION
Just below the cylinder head on the left (drivers) side of the block is a raised pad where the VIN is stamped. This raised pad is located just below the cylinder head casting letter or number (E as shown here). The bracket that runs between the exhaust manifold and power steering (if equipped) obstructs the view somewhat so you really have to look hard to see it. The first number stamped will be a 3 which denotes Oldsmobile, the second number indicates the model year of the block, the next letter indicates the assembly plant and the final six numbers are what will match your VIN if it is the original block.
The VIN stamping in the above picture translates to:
3 = Oldsmobile Division
9 = 1969 Model Year
Assembly Plant (
120074 = The Final Six Digits of the VIN
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