The engine number is on the timing cover, just next to the dipstick tube, but it's not a vehicle vin.
There are also numbers engraved on top of the block halves where they meet at the bellhousing and on a flat section on the left block half, also at the rear near the bellhousing, but it doesn't seem to correlate to the vin, I just went down to check on mine.
I've seen vins stamped on blocks before, but I'm not sure if this car has it and where.