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The 454 EFI version was rated from 230 hp (172 kW) to 255 hp (190 kW) and from 385 lb⋅ft (522 N⋅m) to 405 lb⋅ft (549 N⋅m) of torque. The 1991–1993 454SS made 255 horsepower at 4000 rpm and 405 lb-ft of torque at 2400 rpm thanks to dual 2.5" catalytic converters.
It was the product of placing the 283 cu in (4.6 L) 3 in (76.2 mm) stroke crankshaft into a 4 in (101.6 mm) bore 327 cu in (5.4 L) cylinder-block. The 1967 302 used the same crankshaft stroke as the 283, but was forged steel for high-performance duty.
The crankshaft configuration varies amongst opposed-engine designs. One layout has a flat/boxer engine at its center and adds an additional opposed-piston to each end so there are two pistons per cylinder on each side. An X engine is essentially two V engines joined by a common crankshaft. A majority of these were existing V-12 engines ...
GM also made extensive use of economies of scale for the LS: with the exception of the 4.8L and 7.0L engines, all variants used the same 3.622" stroke (with most of those variants using the same basic crankshaft casting), the 4.8L and 5.3L variants utilized the same block casting, and several variants used the same length connecting rod. [39]
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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.
2024 will be a big year for Ohio. Voters will help choose the next president of the United States and could determine which party controls the U.S. Senate.They'll decide who should represent them ...
DETROIT (Reuters) -U.S. automakers Ford Motor and General Motors will donate $1 million each, along with vehicles, to U.S. President-elect Donald Trump's January inauguration, company ...