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The Chevrolet big-block engine is a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V8 engines that was developed and have been produced by the Chevrolet Division of General Motors from the late 1950s until present. They have powered countless General Motors products, not just Chevrolets, and have been ...
1990 454 SS. For 1990, Chevrolet debuted the 454 SS as a high-performance variant of the C1500. The newest American high-performance pickup truck since the 1989 Shelby Dakota, the 454 SS was a 1 ⁄ 2-ton C1500 powered by a 230 hp (172 kW) 7.4 L V8.
GMC additionally offered divisionally-produced V6 engines for its C/K trucks (305 and 351 cubic inches) alongside the four Chevrolet engines. [13] For 1968, Chevrolet enlarged the 283 V8 to 307 cubic inches. A 396 cubic-inch V8 became an option (the first time a large-block V8 was offered in a light-duty GM truck). [14] For 1969, Chevrolet ...
The gasoline engines that were offered in the medium-duty trucks were the Chevrolet 250 and 292 inline-sixes alongside the 350 small-block V8 and the 366, 427, and 454 big-block V8s. A very rare option was GMC's DH478 "ToroFlow" 478-cubic-inch diesel V6, which was offered only in 1973.
LS7 can also refer to a 454 over-the-counter 460+ hp high compression engine Chevrolet Big-Block engine of the 1970s 7.0L LS7 engine in a 2006 Chevrolet Corvette Z06. The LS7 is a 7,011 cc (7.0 L; 427.8 cu in) engine, based on the Gen IV architecture.
The 350 V8 became the base engine and a 400 V8 engine was new this year. The 454, the top engine, was available with the Turbo Hydra-Matic 400 automatic or 4-speed manual transmission. The 1975 models featured a new grill, providing a fresh appearance. Suspension upgrades offered a quieter ride, and radial-ply tires became standard.