Marine 360?

Single engine boats ARE NOT ALWAYS standard rotation. I have not gotten a good answer on this. Frankly, I think it's more "we had some reverse engines left over." Way back in my auto parts days, a boat owner sent an inboard into a rebuilder, and it came back, they had not checked, had been changed to standard rotation. Obviously the generator, starter, and water pump were still reverse!!!

The issue is most certainly the crank knurling, and of course the cam can be changed. On a small block, a long special fitting and distributor is used, to counteract the opposite thrust of the dist. drive gear.