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The General Motors LS-based small-block engines are a family of V8 and offshoot V6 engines designed and manufactured by the American automotive company General Motors.First introduced in 1997, the family is a continuation of the earlier first- and second-generation Chevrolet small-block engine, of which over 100 million have been produced altogether [5] and is also considered one of the most ...
An LS swap is a type of engine swap using any form factor of General Motors's LS V8 engine series. [1] [2] Motor Trend noted in 2020 that "the Chevy LS V-8 engine has become the de facto engine swap suggestion for anyone seeking to add power to their existing platform" due to the engine's relatively compact size and light weight. [3]
The engine had MPFI (multi-port fuel injection), which gave slightly more power and better fuel economy, and two valves per cylinder. The engine had a bore and stroke of 4 + 1 ⁄ 4 in × 4 in (108.0 mm × 101.6 mm), producing 290 hp (216 kW) at 4000 rpm and 410 lb⋅ft (556 N⋅m) at 3200 rpm. L29 applications:
The new GM LS2 engine has a power output of 400 hp (298 kW) at 6,000 rpm and 400 lb⋅ft (542 N⋅m) of torque at 4,400 rpm. Like the C5, the Corvette C6's suspension consisted of independent unequal-length double wishbones with transverse fiberglass mono-leaf springs and optional magnetorheological dampers .
All the A17 engines are almost identical to the 4EE2 base engine, the main changes are in the ECU, control software, camshaft position sensing wheel, added sensors (exhaust temperature), injector upgrades and modifications of the engine cover, resulting in shifting oil cap position. 79 mm (3.1 in) 86 mm (3.4 in) 1,686 cc (102.9 cu in)
The 4.3 L V6 was retained but was only available on the 1500 and light-duty 2500 series. The "Generation III" small-block V8 engines (based on the LS-series engines) were introduced, with the Express and Savana receiving the 5.3 L V8 (on light-duty vans) and the 4.8 L and 6.0 L V8s (on heavy-duty vans). [9]
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 ...
New engines were the LS-based 5.3L Vortec for the 1500 series and 6.0L Vortec for the 2500 series. Where Chevrolet kept the Tahoe/Suburban branding, GMC renamed its GMT800 products Yukon and Yukon XL, a change that continues to the present day. The shorter 116" wheelbase became the Yukon and the full-length 130" wheelbase became the Yukon XL.