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The vehicle was built in 1989 by Corvette Development Engineering as a development car to study the possibility of achieving the performance of the ZR1 while reducing cost by utilizing a big block engine. The engine was rated at 400 hp (406 PS; 298 kW). [26]
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 power rating for the 350 cu in (5.7 L) L48 base engine decreased from 300 to 270 horsepower and the optional special high-performance LT1 engine decreased from 370 to 330 horsepower. The LS5 454 cu in (7.4 L) motor was carried over and produced 365 hp (272 kW; 370 PS).
The fuel injection was a batch fire system and used a two piece cast aluminum dual-plenum manifold. This engine was available in Chevrolet S-10/GMC Sonoma pickups, Chevrolet S-10 Blazer/GMC S-15 Jimmy/Oldsmobile Bravada SUVs, and Chevrolet Astro/GMC Safari vans only. The L35 was rated at 200 hp (149 kW) and 260 lb⋅ft (353 N⋅m) of torque.
The engine was available through mid-1965, when it was replaced by the 396 cu in (6.5 L) 375 hp (280 kW) Mark IV big-block engine. In addition, a 340 hp (254 kW) version of the 409 engine was available from 1963 to 1965, with a single 4-barrel cast iron intake mounting a Rochester 4GC square-bore carburetor, and a hydraulic-lifter camshaft.
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
Despite the disparity in these horsepower ratings, there was no difference between the engines. In 1971, the compression ratio was decreased to 9.0:1 and horsepower decreased to 330 hp (246 kW), then the same in Corvette and Camaro. A net horsepower rating of 275 hp (205 kW) was also given. In 1972, the rating decreased again, then to a net of ...
When introduced in the 1997 Corvette, the LS1 was rated at 345 hp (257 kW) at 5,600 rpm and 350 lb⋅ft (475 N⋅m) at 4,400 rpm. After improvements to the intake and exhaust manifolds in 2001, the rating improved to 350 hp (261 kW) and 365 lb⋅ft (495 N⋅m) (375 lb⋅ft (508 N⋅m) for manual-transmission Corvettes.