I have not personally seen it but have high confidence in the information from the person who currently has this block in their possession. The casting # is 3932386, it was cast L 6 or 8 of 8. The engine production code is V1212DZ. The vin is stamped back by the oil filter. It's hard to read but believed the last 3 digits are 180 or 380.
The block has not been well taken care of. It will need to be opened up past Ø4.030" and most likely decked.
I tried to purchase the block but the owner wants way more then I'd be willing to pay. I'd be more than glad to try and reunite this block with the original owner.