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LS2 can also refer to the 1973–1974 Super Duty 455 cu in (7.5 L) Pontiac V8 engine LS2 can also refer to the 1985 Oldsmobile Diesel V6 engine. The LS2 was introduced as the Corvette's new base engine for the 2005 model year. It also appeared as the standard powerplant for the 2005–2006 GTO.
The engine saw a series of gradual improvements, increasing reliability, fuel economy, and power output through its production run. In 1981 (1980 for California models), Chevrolet added GM's new "Computer Command Control" (CCC) engine management system to the LG4 engines (except Canadian models).
The Oldsmobile Diesel engine is a series of V6 and V8 diesel engines produced by General Motors from 1978 to 1985. Their design was based on the Olds 350 gasoline engine architecture. A 350 cu in (5.7 L) V8 was introduced in 1978, followed by a 261 cu in (4.3 L) V8 only for the 1979 model year.
It also sported an updated engine called the LS2, which bumped the 5.7 L (350 cu in) LS1/LS6 to 6.0 L (364 cu in) and gained 50 HP, delivering 400 hp (298 kW; 406 PS) at 6000 rpm and 400 lb⋅ft (540 N⋅m) at 4400 rpm, and giving the vehicle a 0–60 mph (0–97 km/h) time of under 4.2 seconds. [76]
In mid-2008, production of the LS2 engine was discontinued, necessitating a switch to the new 6.2L LS3 V8, rated at 317 kW (425 hp) power. Although the Grange had received a new engine, it continued to be designated the E1 until mid-2009, when the new E2 series was formally released.
The "all hand-assembled" LS2 SD455 engine was rated at 290 hp (216 kW) at 4000 rpm and 395 lb⋅ft (536 N⋅m) at 3600 rpm. All Pontiac engines included a new EGR system, which delayed the SD-455 program until late into the production year. The shaker decal on the scoop read "SD-455". The 1973 Trans Am introduced "Radial Tuned Suspension".
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