It's a 321 4 bolt block. TO822IT stamped on the pad with a 8 19 7 cast date. I haven't seen the block. I don't know if there are any other numbers on the pad. It is on Ebay. The seller gave me a price that he would end the auction for but I'm not sure if it's worth what he wants.
James
http://cgi.ebay.com/ebaymotors/ws/eB...tem=8023316056