well i was going to go the other way..olds to bbc on my for sale boat..the only thing i could use was the carb and the exhaust snails, that was about it....you will need mounts for motor to boat and mounts from motor to jet , exhaust logs or headers, diff alt brackets, and diff driveshaft yoke universal thingy that mounts to flywheel and jet splines.....and some other stuff i forgot about...now thats a start...