For Sale: Continental engine

[Alex van de Wetering]

For M22 Locust

My first guess was Piper Cub, but the odd thing is most Continental engines for aircraft use, have the exhaust and inlet port on the same side, while on this one they are on opposite ends. Cylinders from a Generator maybe?

Edit: code "2805" seems to relate to: "Non-Aircraft Gasoline Reciprocating Engines and Components"