I have a Detroit Diesel 4-71T for sale. It was an engine for a fire pump for an industrial building. The engine has very low hours as it was only ran for testing purposes. It has never really been used! It's like brand new! It is currently set-up with a heat exchanger, so this could very easily go right into your boat. With just a few simple swaps this engine could be used for almost anything, as a generator, water pump, swap it into a pickup truck for a true one-of-a-kind rig, or for heavy equipment like pay loaders and graders.
I will entertain all offers and will work with any buyer on shipping. My name is John and thank you for looking!