I am in the process of deciding on whether to rebuild a 305 with some performance mods, or to replace it with a 350. Since this is a marine application all of the spark arrested parts from the 305 would have to be put on the 350 (carb, starter, etc, etc). Does anyone have experience in marine engines??

Does anyone know the internal differences between a marine & "land" engine - a marine engine runs higher rpm (3200 plus) for cruising.

To the best of my knowledge the heads are more along the line of high rpm car heads - true???

Can 305 heads be bolted directly onto a 350?

Sorry for all the questions but I can't find any forums that deal with marine applications - Any help or direction would be greatly appreciated.

Thanks