whats the most horsepower anyones put on a v?

[spareparts]

400 small block weighs the same as a 350, biggest thing when you build a boat motor vs a hot rod motor is remember to build torque, keep the rpm under 6000, and use a specific cam shaft recommended for a boat, other than that, its pretty much like any hot rod motor. If you're running in salt, you will want to run a closed cooling system, salt will eat up an aluminum intake water passage and rot out aluminum heads. It will rust up cast iron as well, so if your sinking big bucks in a motor, you might as well protect the cooling system