Wow! A friend gave me the 440 because it has the front motor mount bosses to go in my 68 383 Barracuda. It was a Marine block run on a closed coolant system. Came with a shot peened forged crank and one forged piston, no where close to the other 7 for compression. Not sure I'll get it done, but it is a nice piece. Another friend knows a guy that builds them into 540 cubes and puts out 740 hp on pump gas, normally aspirated, but that just sounds crazy to me. I'm finishing the original 383 to go back in this year hopefully.