Need some expert advice, please.
I have a 95 21' open bow that is in very good condition except the fact that the engine has a crack in the block. This thing actually starts and runs great for the short period of time I had it running. With the boat being as old as it is I am hoping to come across a good deal on a used drop engine. I just need to know what engines will work without major modification. I would be fine with dropping in another 305 or even a 350. I know the 350 could be a bit much for the alpha 2 outdrive but I really just use it for cruising around the lake. I never open it unless the water is calm because I personally don't like getting beat to death. There is a 5.7 near me but its listed as a "MERCRUISER 5.7 ALPHA ONE GEN 0NE" complete engine. Will this work? If not, what should I be looking for? The current 5.0 has a 2 bbl carb. I attached a pic of the engine for sale.