It would not take to much to put this back in shape. 72 chevy c-60 427 5spd 2spd garage kept but has been parked for over 15yrs back brakes have seized motor turn over freely. Go there and type mobile home toter in the craiglist search.
NO core required. The block is the identical size but the bolt holes on the back of the engine are slightly different so you will need to purchase a new style 743 mounting plate for 225.00, we have those in stock.