Oneill Brothers CY Head engine

[3illmesmart]

Are these any good? Looks like it only had the few tanks through it the guy said.
OBR still have heads and domes but no cylinders listed.

 

[Clubin]

I had one of them. They used a marine cylinder with that other stuff on top of it.
I don’t remember having it very long.
Mine was a dark Soul ? I think.

 

[Seandonato73]

No real point to it imo, the engine is already so performance limited your not gaining much with the removable head.