I have a newish Cub Cadet lawn tractor (the cheap $1500-$2000 Loews type's) that I would love to make diesel. It currently has a wonderfully smooth 15hp Kawasaki V-Twin. If it were diesel I think it could do the same job with less HP considering it would have so much more torque. So basically, who made a vertical shaft diesel engine. I would need to buy used so new stuff is probably out of my budget. Thanks guys.