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The 6.2 L; 376.0 cu in (6,162 cc) LT5 engine debuted in the seventh-generation Corvette ZR1 at the 2017 Dubai Motor Show. It draws its name from the 5.7 L LT5 from the C4, manufactured from 1989–1993. The original LT5 is rarely known as a Chevy small block V8, as it was designed by Lotus, built by Mercury Marine, and implements a DOHC 32 ...
The LT9's listed specifications are 160 hp (119 kW) at 3,800 rpm and 250 lb⋅ft (339 N⋅m) of torque at 2,800 rpm with 8.3:1 compression. [27] LT9 engines were carbureted with Rochester Quadrajets from the factory and generally have four-bolt mains. The LT9 is often known as the "M-code 350," from the eighth character of the VIN. [26]
The 5.7-litre DOHC 32-valve LT5 engine unique to the car had a central bore spacing of 4.40 inches. The distance was maintained by reducing the bore from 4.00 to 3.90 inches while the stroke was increased from 3.48 to 3.66 inches. The aluminum cylinder liners were Nikasil-coated and the engine block has a cast-aluminum oil sump.
The ZR1 is heavily based on the Z06 platform with many noticeable changes, including the all-new 6.2 L; 376.0 cu in (6,162 cc) pushrod LT5 V8 engine equipped with a 2.6 L (0.6 imp gal; 0.7 US gal) Eaton supercharger that is 52% larger than that of the Z06 along with a new fuel injection system.
In 1990, the ZR1 option Corvette was introduced with the LT5 engine designed by Lotus and built in the Mercury Marine plant in Stillwater, Oklahoma. The LT5 engine was a four-cam (DOHC) design producing 375 hp (280 kW). The C4 ZR1 ran from 1990 thru 1995 model years. In 1991, all Corvettes received updates to the body, interior, and wheels.
The Chevrolet small-block engine refers to one of the several gasoline-powered vehicle engines manufactured by General Motors. These include: The first or second generation of non-LS Chevrolet small-block engines; The third, fourth, or fifth generation of LS-based GM engines; The Chevrolet Gemini small-block engine
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 ...
For the 8th generation (C8), the ZR1 was again on offer as the top variant for 2025, but major changes had been made to the car, not the least of which was to the Corvette layout, switching from a front mid-engine, rear-wheel-drive layout (FMR) to a rear mid-engine, rear-wheel-drive layout (RMR), moving the engine to the rear for the first time ...