I will bet those poor pistons look tiny compared to the height of that boat engine. It looks like you have a liquid cooler under the blower. Will it run lake water or does it have a closed cooling system with a heat exchanger?
It was easy to see that the first post was a blower mounted upside-down in front of an engine and I figured it was to keep the engine short. I was thinking it would fit under an engine cover in a boat, but a land speed car makes sense as well.