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The inline six-cylinder 71 series engine was introduced as the initial flagship product of the Detroit Diesel Engine Division of General Motors in 1938.. This engine was in high demand during WWII, necessitating a dramatic increase in output: about 57,000 6-71s were used on American landing craft, including 19,000 on LCVPs, about 8,000 on LCM Mk 3, and about 9,000 in quads on LCIs; and 39,000 ...
The engine's compression ratio is 18.7:1 with a 4.250 inch bore and a 5.00 inch stroke. [1] The engine weighs 2,185 lb (991 kg) and is 54 inches long, 29 inches wide and 41 inches tall. [1] At 2,100 revolutions per minute the engine is capable of producing 230 horse power (172 kilowatts). [1] V-type versions of the 71 series were developed in 1957.
The GM Diesel/Detroit Diesel model 6051 Quad power pack consists of four inline 2-stroke diesel 6-71 engines mounted to one gearbox, usually with one shaft coming out of the power unit. The power units were fitted on landing craft and ships during World War II , ships including LCI(L) , [ 1 ] Prab (741) and Nahka (751) were fitted with two of ...
Gray built their own engines up to 1924, but converted automotive engines from about April 1924 on. During WWII, Gray Marine built 100 marinized GM style 71 series diesels a day using GM cylinder blocks. [1] [3] On June 14, 1944, the company was purchased by Continental Motors Company for $2.6 million. John W. Mulford, the son of O. Mulford ...
Detroit Diesel Series 50; Detroit Diesel Series 53; Detroit Diesel Series 60; Detroit Diesel Series 71; Gray Marine 6-71 Diesel Engine; Detroit Diesel Series 92; Detroit Diesel 110; Detroit Diesel Series 149; Detroit diesel 6051 quad-71
He moved to Detroit in 1936, and was a central figure in the development of the 567 and the Detroit Diesel 6-71. He moved to EMD in 1938, became chief engineer at EMD in 1948, then division director in 1956 and subsequently research assistant to the general manager in 1958 until his retirement in 1960. [2] The 567 was released in 1938. [3]
The F Model offered 5 different diesel engines, Mack's Maxidyne and Thermodyne at 260-375 hp, Cummins - 250-350 hp, Detroit Diesel - 270-430 hp and Caterpillar - 325 hp. Cat3406 is a big-bore diesel available in both high-torque-rise and conventional torque-rise versions; Detroit Diesel 71 series, provided power with a high torque curve.
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