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The Cadillac V16 engine was a type of automobile engine produced in the 1930s. Cadillac produced two of only three production, gasoline-fueled V16 engine models in history. Both were used in the Cadillac V-16 automobile, the first from 1930 until 1937, and the second between 1938 and 1940. The company has twice attempted to build a new V16 engine, once in the 1980s and again in 2003, but these have yet to be put into production. The only other 16-cylinder automotive engines ever attempted were Bugatti's 1915 U16, Marmon's V16, and Cizeta-Moroder's V16 (actually 2xV8). A modern, quad-turbocharged W16 engine was used in the EB 16/4 Veyron built by the new Volkswagen-owned Bugatti in the 2000s. ==Series 452== With its chief competitor, Packard, already having sold a V12 engine against Cadillac's eight-cylinder cars, work began late in the 1920s under Hemmings to produce a car of real impact. Lawrence Fisher, Cadillac General Manager, leaked to the press that the company would also build a V12, hoping to keep the real engine secret. The original Cadillac V16 could be said to be two straight-8 engines on a common crankshaft and crankcase, because each bank operated entirely independently of the other with no other shared components. It sported a narrow 45° bank angle for use in the new Cadillac chassis (which became the Fleetwood).〔Editors of ''Automobile Quarterly''. ''General Motors: The First 75 Years''. (New York: Crown Publishers, Inc, 1983), p.58.〕 The engine was well engineered, with a counterweighted crankshaft (quite a mathematical challenge at the time), overhead valves,〔''General Motors: The First 75 Years'', p.58.〕 and hydraulic tappets.〔 It also had only two single barrel carburetors,〔 one for each bank.〔 The 452 V16 had a bore and a stroke, giving an engine displacement of . It was therefore known as the Series 452. Cadillac initially rated the engine at .〔 It was capable of powering the heavier models to speeds in excess of , and for some of the lighter examples. In all, 3878 Series 452s were built.〔 This engine was used in the various V-16 models: * 1930–1934 Series 452 ("A" through "C") * 1935 Series 60 * 1936–1937 Series 90 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cadillac V16 engine」の詳細全文を読む スポンサード リンク
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