I have an old gen head available. It had a flat head Jeep engine in front of it. Anyone interested in it. I was told that it was working when the engine was pulled. There isn't any data plate on it, and there are 4 heavy gauge wires coming out. I have the bell housing and fan too. If any one is interested I can post pictures.
Value will depend on the mountings. Most, but not all of the direct mounted heads use SAE bellhousings. If so the head can easily be adapted to another engine, if not the its about scrap value in my experience
It looks like a round SAE style mounting. I'm not sure how to tell.
Tom, here is some info:
Determining Your SAE Bell Housing & Flywheel Size
https://microcogen.info/index.php?topic=3704.0