yah, it is a boat motor, a chevy 350 from a mercury 350/260 out put I/O ski boat that we put a nascar aluminum 350 in to, the marine engines are ( i am told ) and according to some 4X4 magazine my dad read, very sought after in the rock crawling communities because they are very well built and pure torque, built for power, not high rpm's. this is because the boat engine is like a truck going up hill all the time, always under a load, it never gets to coast because if it does the boat stops.:lecture: you know what i mean vern?