Craigslist finds

[eshaw]

Everthing you need for airboat conversion.
https://phoenix.craigslist.org/evl/bpo/d/for-sale-4-cyl-air-boat-motor/6559018485.html

Those 4 cyl. Continental engines make good airboat engines. The trouble starts when you start pricing overhaul one, that'll get your attention!

 

[Bateman]

Everthing you need for airboat conversion.
https://phoenix.craigslist.org/evl/bpo/d/for-sale-4-cyl-air-boat-motor/6559018485.html

Those 4 cyl. Continental engines make good airboat engines. The trouble starts when you start pricing overhaul one, that'll get your attention!

Looks like a good ole O-200. Overhauls are almost always done per FAA regulations when an aircraft is involved and definitely high dollar! That little engine would thump for a very long time if maintained. That was the first piston aircraft engine I ever overhauled. Good times!