The Ford GAA is an American V8 engine developed by the Ford Motor Company during World War II, originally designed for use in aircraft but later adapted for armoured vehicles. Displacing 18L and producing around 500 hp at 2,600 RPM, the GAA engine became the heart of the M4A3 Sherman and later the M26 Pershing. Known for its reliability and impressive performance, the GAA engine featured an all-aluminium block with iron cylinder liners, dual overhead camshafts, and a sophisticated fuel injection system for its time. Its smooth power delivery and high torque were crucial in providing the necessary mobility and speed for these iconic American tanks, playing a significant role in their success on the battlefield.

Ford GAA
Engine