"Honda 160cc premium residential, horizontal shaft engine features overhead cam technology. The GC series are incredibly quiet and utilize the world's first internal timing belt. Honda has taken their technology one step further with the development of the GC Series, a line of rugged powerful and economical overhead cam engines designed specifically for home-use and recreational applications. Common applications generators. Bore x Stroke in. 2.5 x 2.0, Max. RPM 3,600, Shaft Diameter in. 3/4 tapered, Ignition System Electronic, Throttle Control Manual, Cooling System Air cooled, Engine Displacement cc 160, Torque ft./lbs. 6.9 @ 2,500 RPM, Mounting Base L x W in. 6 3/8 x 2 15/16-3 5/32, Engine Type GC series OHC premium residential-duty, Fuel Type Gasoline, Lubrication System Forced splash, PTO Height in. 4 11/64, Cylinders qty. 1, Governor System Centrifugal mechanical, Application Generator, Air Cleaner Type Dry paper type, Compression Ratio 8.51, Dimensions L x W x H in. 13 5/16 x 14 1/2 x 13, Muffler Included Yes, Crankshaft V type, Fuel Pump Yes, Bolt Circle in. 3 5/8, Cylinder Bore Aluminum alloy, Rated Power HP 4.6, Fuel Tank Capacity qt. 1.9, Shaft Rotation From PTO Shaft Side Counterclockwise, Start Type Recoil, Bearing Type Ball, EPA/CARB Approval California Air Resource Board Yes, Low Oil Shutdown Yes, Fuel Tank Standard, Shaft Length in. 2 53/64, Oil Capacity qt. 0.61, Shaft Output Horizontal, Carburetor Float. Compact and lightweight design 50-state compliant engine"