Opinions Welcome

[Eric N]

Have you thought about an engine out of an Oliver 66?  There is a person in this area that did that and it worked pretty good.  I thought about it but went with rebuilding my IXB-3. Machine work and parts set me back $1350.  That's bore and boil, valve guides and grind, grind and polish the crank, 8valves, 4 new pistons, new rod and main bearings and gaskets. 

[Tim Ling]

How about a Continental, like a F163. They made a bunch of these for industrial applications and parts should be still available. We used F163s in our Tennant scrubbers and sweepers when I worked for GM. They were good tough little engines. We ran hydraulic pumps off of them and they ran all day at governored speed.