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An even more powerful version, producing 465 hp (347 kW) and 610 lb⋅ft (827 N⋅m), of the 454, then dubbed LS-7 (not to be confused with the modern, mid 2000s, 7-litre Chevrolet Corvette engine that powered the C6 Z06, which is an LS7). Several LS-7 intake manifolds were individually produced and sold to the general public by a few Chevrolet ...
Muncie SM318 transmission — 3-speed transmission used from 1954 through 1969 in both passenger car and truck applications. Also found in wide and narrow ratio configurations. Muncie SM319 transmission — 3-speed transmission physically identical to the Muncie SM318, with an added Borg Warner overdrive unit.
It included the special equipment in the ZR1 package, but for the 454 LS-6 engine. Per GM policy, 1971 Corvette engines were detuned to run on low-lead fuel, except for the LS-6 V8, which was rated at 425 bhp (317 kW) on premium fuel. 188 cars in the 1971 model included the LS-6 engine, with only 12 with the ZR-2 package, including only 2 ...
The 1982 L83 was again the only Corvette engine, producing 200 hp (149 kW) and 285 lb⋅ft (386 N⋅m) of torque from 9.0:1 compression. Since GM did not assign a 1983 model year to production Corvettes, there was no L83 for 1983. [22] This was also the only engine on the 1984 Corvette, at 205 hp (153 kW) and 290 lb⋅ft (393 N⋅m) of torque.
The engines were also sold for marine and stationary applications. In a 1938 reorganization, Winton Engine Corporation became the GM Cleveland Diesel Engine Division, and GM's Detroit Diesel Engine Division began production of smaller (50–149 cu in (0.8–2.4 L) per cylinder) diesel engines. Locomotive engines were moved under the GM Electro ...
Beginning in 2001, GMC offered the same turbocharged diesel Duramax V8 engines as were available in similar Chevrolet trucks. The engine family was co-developed by GM Powertrain and Isuzu, and has gone through numerous iterations through the years. Duramax engines are paired with a heavy-duty automatic transmission from GM's Allison division. [4]
The naturally aspirated GMC four-stroke diesel engines were added to the General Motors truck line for the 1965 model year. As introduced, the D351, D478, and DH478 all shared the same 17.5:1 compression ratio. [10]: 34 Although they shared similar displacement, bore, and stroke dimensions with the gasoline engines, very few parts were the same.
The big-block engines initially used a forged crankshaft with a stroke of 3.975" for the 1965-1967 425 and 400 CID versions; starting in 1968, both the 400 cu in (6.6 L) and the 455 cu in (7.5 L) big blocks used a stroke of 4.25 in (108 mm), with crankshaft material changed to cast iron except in a few rare cases.