I was out looking at the Yanmar 30hp 3cyl diesel engine I have from an old gravely outfront mower. It is recently rebuilt and doesnt leak a drop of anything! and purrs like a kitten too. I am thinking what to do with it? I decided to try to mount it to one of my WBs! I think size wise, it will fit ok with some fabrication, but it is a horz. shaft, and the WB needs a vertical shaft to go thru the engine frame to reach the pulleys. I guess I could use a 90 degree angle gear box to get the shaft vertical, but also have to mount the big radiator and the full size truck battery! This would be one powerful mower with that engine! It should work OK with alot of modificaton though? OR maybe I should try it with a larger WB? What do you all think, is it worth trying? I would mount it to my ferris DD, but that i salmost brand new and really do not want to go installing different engines on it yet.