who makes this engine? help?
 

Can someone help me out with this engine It is big and I have know idea who makes this or what kinda of prop I should use or what kinda of power it has. Help?
Gerry...

RE: who makes this engine? help?
 

Kinda looks like a Zenoah twin with a aftermarket ignition..The mufflers are Zenoah twin...
The case looks like a Horner twin..the cylinders could be Kawasaki 2 cu. in....Some early ones were made that way...
the manifold looks homemade...

RE: who makes this engine? help?
 

What size of Zenoah twin could this be?

RE: who makes this engine? help?
 

Looks kinda like a Zenoah GT74. They used them for racing, I think

RE: who makes this engine? help?
 

A closer look at picture #2 shows that it's not a Zenoah, probably a Horner...

RE: who makes this engine? help?
 

If this is a Horner where would I find out more information on this ?
Gerry...

RE: who makes this engine? help?
 

Help is this a Horner?
Gerry...

RE: who makes this engine? help?
 

Gerry, what kind of info do you want on this engine,looking at pictures I believe it is a Horner.I have (3) of the Horners converted to 4.8 CI.Been using them for 15 yrs,I have some of the original brochures on the engine, Bob

RE: who makes this engine? help?
 

Hi Bob what kinda of prop will it swing also what size of engine do you think this is?
Gerry...

RE: who makes this engine? help?
 

Gerry.
I am sure this engine is a Horner by looking at the shape of the cylinder heads in your pictures,He made (2) types of heads.It appears from looking at my brochures you have the later set which in the brochure he claims was a TOC version.In one add he said it was 9 to 1 compression and other he said 7 to 1, Weight 5 lbs in one and 4 lbs in other,RPM stated was 6500 to 11000,Plugs were NKG 10 MM.Your appears to be a converted ignition as the originals was a fixed type with pickup mounted on two lower bolts going thru engine crankcase and coil box was a rectangular aliuminum box with no markings,As far as props I would reccomend a 20" or 22",On my 4.8 conversions I use 22x8/14 or 24x10.The engine you have I would say is a 3.7 CI.Hope this helps. Bob

RE: who makes this engine? help?
 

Thanks for the help Bob :);)
Gerry...