It's on the driver's side of the block, down low, in the rear. It faces directly out towards to drivers side fender well. Get some brakeclean and wash off the area. It's stamped real light and hard to see.
I believe it is on the drivers side bottom of the block adjacent to the tranny. I am not sure if the entire vin is there, or only part of the sequence...sometimes almost impossible to tell a number has been stamped there.
The number is where Ed and Steve stated. I think the car would need to be up on a lift so you can really get up there and see it. It's only going to be the last few digits of the VIN, as it's the serial number. powersix