RE: Help with name and specs for this engine
Yeah,
Its a Fisher. I really want the XR model with the built in fuel pump. Yours has the telltale brass plug under the crank where it was run from. On the XR there was a pressure nipple here and the pump was built into the rear of the crankcase. This design was later copied by O.S. on their high performance .60 engines. Enjoy.
Max