400 stroker build....for a boat

Thanks for the replies so far! My build puts the engine "below" deck, so I am slowly putting a list together of everything I need for the closed cooling system. I had planned on running wet exhaust to try and keep the heat down in the engine compartment. Actually am going to make an adapter to be able to use the larger port small block chevy manifolds to be less weight, and not have to worry about the old Chrysler log type manifolds.

Heat exchangers are certainly pricy...but I want to do it right the first time if possible.