I traded my automatic '69 GTO with a numbers matching engine for another '69 GTO. I have not been able to locate the VIN on this engine block. It has the following codes: WT 0594408 on the front of the block, passenger side. On the back, passenger side, 9790071. The VIN on my pervious '69 was on the front, passenger side, near the timing cover in a vertical arrangement.