I own a 1996 Renken 230 Cuddy Cabin with a 4.3 LX Mercruiser and Alpha One stern drive. The engine has popped a freeze plug and looks to have some cracks in the water inlets from a stint in New Jersey (stationed there at McGuire AFB). I'm looking to just change the engine out but need to know how it would effect the boat itself. The boat topped out at 62mph with the 4.3 (V-6) but I'm thinking of moving it up a notch to the 5.0MPI(V-8) and Bravo One stern drive. Will this engine fit? Will it be too much for the hull? Any advice out there?