CQ's right, basically any engine but a Kohler Courage, haha.
Kohler Command single and V-twins are great engines thar feature pressure lubrication, and the Magnum singles and opposed twins are very good engines as well. Oh and of course the legendary K Series hardly even need a mention! Hahaha.
The Briggs model 25 and 28 flattys are super simple, reliable and common engines, as with the 40, 42, and 46 opposed twins. I don't have a whole lot of experience with the newer Intek series, but I'm not a huge fan of them. The Vangaurds however are great engines.
Pretty much anything will work though.
"This'll either wake you up or put you to sleep forever!"- Red Green "Whatever you do you should do right, even if it's something wrong." - Hank Hill - MTD Off-Road Build
- Ford LT 110 Off-Road Build
- Craftsman GT 6000 Off-Road Build
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- Allis B-110 x2, 710 & 716 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic & 1668 - Cub 106 & 124 - Ford LGT 125 & 145 - White 1650 Yard Boss