it would certainly have a value. not sure how much, but if it is THE original motor, it should go back in it. all the date codes would obviously be correct.
As I previously mentioned, the partial vin was stamped on the front pad and I did record the vin number.
However, after I informed the owner that the block had been decked and that the partial vin was no longer visible he didn't seem too interested in re-joining it with the car.
Unfortunately for him, I'm the only witness who can attest to the vin stamping.