Redline's gleaming metal monstrosity was hooked up to the shop's dynamometer for power testing during a shop tour by YouTube channel Engine Builder, and Redline's owner was a little light on specific details. However, just by looking at the engine, you can learn a lot. Notably, despite looking the part, it does not have a carburetor for fuel delivery. It's electronically fuel injected. Carburetors are cool and all, but electronic fuel injection is way more user-friendly, tweakable, and reliable than old-fashioned carburetors, especially if the boat is going racing. 

The block and head are also all aluminum, which helps dissipate heat better than cast iron and lightens the engine assembly considerably. It also looks cool, so that's a plus. Lastly, sitting on top is a giant supercharger from The Blower Shop. The Blower Shop specializes in hand-built superchargers, some of which have a greater displacement than some car engines.

Whatever boat Redline's engine goes into will probably be more than capable of doing whatever the marine equivalent of a burnout is and will probably be the correct amount of incredibly loud.