GMC V6 engine
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The GMC V6 is a family of 60-degree V6 engines produced by the GMC division of General Motors from 1959 through 1974. It was developed into both gasoline and diesel versions, and produced in V8 and V1
GMC "Twin Six" heavy duty engine 702 cu in (11.5 L)
Detroit Diesel Series 71
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The Detroit Diesel Series 71 is a two-stroke diesel engine family that was available in both inline and V engine configurations, designed by General Motors and principally manufactured by Detroit Dies
Detroit Diesel 6V71
Detroit Diesel 8V-71T as used in the U.S. M109 self-propelled howitzer
General Motors transit bus powered by a rear-mounted 6V-71 Detroit Diesel engine.