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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 ...
Also called the 'Big Doggie', the ZR2 is a concept model based on a C4 Corvette, but with a much larger 7.4 L (454 cu in) big block OHV V8 engine with multi-port fuel injection similar to the tuned port injection found on the 1985–1991 base model and a 6-speed manual transmission. [24] [25]
In an internal combustion engine, twin-turbo is a layout in which two turbochargers are used to compress the intake fuel/air mixture (or intake air, in the case of a direct-injection engine). The most common layout features two identical or mirrored turbochargers in parallel, each processing half of a V engine 's produced exhaust through ...
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.
7.4 L (454 cu in) Chevrolet big-block engine released in 1969 for the 1970 model year. Big-block engines reached their zenith with the 8.2 L (500 cu in) Cadillac 500 engine used in the 1970 Cadillac Eldorado coupe. During the 1970s, due to the oil crises and the gradual tightening of emission standards, big-block V8s were affected,.
First year for the LT-1 Small-Block and 454 cu in (7.44 L) Big-Block; three-speed manual transmission dropped and four-speed manual became standard with Turbo Hydra-Matic available as a no-cost option with all engines except LT-1 350; posi-traction made standard equipment; introduced along with the second-generation Chevrolet Camaro on February ...
The Chrysler B and RB engines are a series of big-block V8 gasoline engines introduced in 1958 to replace the Chrysler FirePower (first generation Hemi) engines. The B and RB engines are often referred to as "wedge" engines because they use wedge-shaped combustion chambers; this differentiates them from Chrysler's 426 Hemi big block engines that are typically referred to as "Hemi" or "426 Hemi ...
The big-block 454 cu in (7.4 L) V8 was discontinued. The Turbo Hydramatic transmission became standard equipment on all 1976 Monte Carlos. Interior trims remained the same as in 1975, with both base and custom levels, but the instrument panel and steering wheel featured a new rosewood trim that replaced the burled elm of previous years.
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