![]() ![]() Henry and Wilfred Leland had originally built the factory to produce Liberty aircraft engines for World War I.īy passenger car standards, the GAA was enormous: five feet long, four feet tall, and almost 1,500 lbs. Historically, this brought the Lincoln facility full circle, if you will. With a bore and stroke of 5.402 inches by 6.0 inches, the V8 version displaced 1100 cubic inches (18 liters) and was nominally rated at 500 hp at 2600 rpm, with 1050 lb-ft of torque at 2200 rpm.įord produced the GAA and its variants (GAF, GAN, etc., and a V12, the GAC) at its Lincoln auto plant on Warren Avenue on the west side of Detroit, above. But the Allied war effort was in desperate need of tank engines for the ground war, which was bound to be protracted and difficult, so the Ford V12 was hastily converted into a V8 (hence the 60-degree bank angle). military planners, especially at the navy, were focused on air-cooled radials rather than liquid-cooled inline engines for aircraft use. government declined to approve the Ford V12 for production, but not due to any particular fault of the engine, reportedly. (Ford did produce thousands of Rolls-Royce Merlin engines at its Trafford Park plant in England.) Additionally, unlike the Merlin, this engine was designed for high-volume production with a number of castings in its construction. And it was a particularly advanced one, with four valves per cylinder, double overhead camshafts, bucket-style valve followers, and an exhaust-driven turbo-supercharger. Much misinformation surrounds this engine: contrary to the campfire stories, the Ford V12 was not a copy or derivative of the Rolls-Royce Merlin engine, but an all-new design. The GAA V8 story actually begins with a proposed Ford V12 aircraft engine (above) that was developed in the hectic days leading up to the USA’s entry into World War II. ![]() ![]() The Ford Motor Company has built nearly every kind of V8 engine we can imagine over the past century, but the biggest was the 1100 CID GAA tank engine of World War II. ![]()
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