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Ford flathead V8 engine

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Ford flathead V8 engine

The Ford flathead V8 (often called simply the Ford flathead or flathead Ford) is a V8 engine with a flat cylinder head introduced by the Ford Motor Company in 1932 and built by Ford through 1953. During the engine's first decade of production, when overhead-valve engines were used by only a small minority of makes, it was usually known simply as the Ford V‑8, and the first car model in which it was installed, the Model 18, was (and still is) often called simply the "Ford V-8" after its new engine.

An automotive milestone as the first affordable V8, it ranks as one of the company's most important developments. The engine was intended to be used for big passenger cars and trucks; it was installed in such (with minor, incremental changes) until 1953, making the engine's 21-year production run for the U.S. consumer market longer than the 19-year run of the Ford Model T engine. It was also built independently by Ford licensees.[citation needed].

The Ford flathead V8 was named on Ward's list of the 10 best engines of the 20th century. It was a staple of hot rodders in the 1950s, and it remains famous in the classic car hobbies even today, despite the huge variety of other popular V8s that followed.

Ford had helped pioneer the concept of an affordable mass-produced car. Historically, these used inline-four and inline-six cylinder engines. Following French engineer Léon Levavasseur's invention of the V8 in 1902, V8s, V12s, and even V16s, were produced for use in luxury models. The Cadillac V8 engine is credited as the first mass-produced V8, and when Ford Motor Company acquired rival luxury marque Lincoln in 1922, the maker was already producing a flathead V8 with fork and blade connecting rods, which remained in production after Ford took over until 1932.

Even though Ford had an engineering team assigned to develop its own V8, many of the ideas and innovations were Henry Ford's. The Model A, its variants (B and 18), and this V8 engine were developed between 1926 and 1932, and this period was the elder Ford's last central contribution to the company's engineering.

Mercury's 239 cu in (3.9 L) version of the engine was introduced in 1939.

An economizing design feature of this engine was the use of three main bearings to support the crankshaft, rather than the customary five used with most V-8s. The flathead mounted the camshaft above the crankshaft, like later pushrod-operated overhead-valve engines. Valves for each bank were mounted inside the triangular area formed by the "vee" of cylinders. The intake manifold fed both banks from inside the vee, but the exhaust ports had to pass between the cylinders to reach the outboard exhaust manifolds, since it did not use a t-head configuration. Such an arrangement transferred exhaust heat to the block, imposing a large cooling load; it required far more coolant and radiator capacity than equivalent overhead-valve V8 engines. Ford flathead V8s were notorious for cracking blocks if their barely adequate cooling systems were overtaxed (such as in trucking or racing). The simple design left much room for improvement, and the power available after even low cost modifications was usually substantially more than could be obtained from an overhead-valve inline six-cylinder engine of similar displacement[citation needed].

The Ford flathead V was manfactured in several countries other than US, including France, Australia, Germany and Sweden.

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