Ford Model A engine

The Ford Model A engine is a water-cooled, four-cylinder, L-head gasoline piston engine that Ford developed in secret at its Rouge Plant and unveiled on 2 December 1927 together with the Ford Model A automobile. It grew out of the Model T engine but used a bigger bore and stroke and a higher compression ratio, giving about twice the power: roughly 40 horsepower at 2,200 rpm from 200.5 cubic inches (3.3 litres). It breathed through a Zenith one-barrel updraft carburetor fed by gravity from a tank in the engine cowl. About 4.8 million Model A automobiles were built, and the engine also drove trucks such as the Model AA, tractors, farm machinery, boats and homebuilt aircraft like the Pietenpol Air Camper. Derivatives with improvements stayed in production until 1958, and tens of thousands of the original design still run today.