Wufnu,
Yes, I think that's the same engine. Mine has a small tab rivetted to the housing that says "Koritz K3s" on it.
Its a nice quality engine. I cut off the rear crankshaft just past the rear bearing race and replaced the seal with a plug that I turned from a piece of aluminum using the points screw holes to hold it in. The flywheel is so heavy it think it weighs more than the rest of the engine. Get rid of that FW and its a very decent weight.
I also whittled a carb adapter so I could rotate the carb. I think you'll like it on Glo or GGL.