Re: Changing power drives
The 470 uses a Ford 460 big block head, so if the head is totally shot, that should tell you that you can fix that problem easily. If it were me, I would just fix the 470 and be done with it, otherwise for outboards you will need to replace the transom and tie it into the floor structure to transfer forces, Inboards transfer force through the structure they are mounted to, the transom isn't as strong as an outboard boat so you have to modify it for the stress and weight of two outboards. Its not impossible at all. The jetdrive would be fun, but you would have to rebuild the transom for the single lower mounted jet drive, cut a hole in the bottom for the intake and hope the keel shape is close enough to the intake shape, you would have to rebuild the engine mounting structure as well. None of it is impossible, but the easiest and cheapest is to fix that 470. At 170 hp apiece, they aren't that bad a motor, but parts can be spendy (I just got done fixing one for a friend).
