I own a 55 model evinrude 5 horse motor . I spent 100 dollars on a part that one side is the water pump housing @ the other side holds the clutch dogs in place . shortly after that the motor locked up . so overall i got 300 bucks of scrap metal . the foot works like a charm so i hate to junk it . I was just wondering if there was a way to put a 4 stroke engine on this foot . Maybe like a lawnmower motor with a vertical shaft ? It would be great if anonher power head from a different hp would work . Just curios I am open to suggestions.