I ended up putting a 5.5 Intec briggs on my Murray which was good power and I just loved the way it steered but they need front suspension IMO. I tried to like it but it jarred the hell out of me despite the shock seat, maybe I'm just old but I could not ride comfortably. Some cruiser bars might have helped me sit further back but I got a great offer on it so it was sold. Now if it would have had front suspension I would likely still have it.