... .Competitive price with similar quality 3.quick deliver horizontal gasoline engine, Gasoline Engine , Petrol engine WY168FE Gasoline Engine with 5.5HP Power, Single Cylinder and Electronic Ignition SystemKey Specifications ... cylinder, air-cooled and 4-stroke OHV, 5.5HP, easy-pull, quick starting and gasoline engine Bore x stroke: 70 x 45mm Displacement: 173cc ...