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EcoTec3 is the name used on General Motors' Small Block Gen 5 Engines. All include direct injection, cylinder deactivation, and continuously variable valve timing, either in V6 form of 4.3L or V8 form of either 5.3L or 6.2L.
It was the simplest, most basic 5.3L V8 of its family, lacking any special technologies. Also known as the Vortec 5300, the LH8 was available in the H3 and GM mid-size pickups through 2009. The LH8 is a variant of the 5.3L Gen IV small-block V8 modified to fit in the engine bay of the GMT345 SUV and GMT355 trucks.
The GM Ecotec engine, also known by its codename L850, is a family of all-aluminium inline-four engines, displacing between 1.2 and 2.5 litres.Confusingly, the Ecotec name was also applied to both the Buick V6 Engine when used in Holden Vehicles, as well as the final DOHC derivatives of the previous GM Family II engine; the architecture was substantially re-engineered for this new Ecotec ...
Notable changes for the 2022 Limited models included the discontinuation of both the 4.3-liter LV3 EcoTec3 V6 and 5.3-liter L82 EcoTec3 V8 with active fuel management (AFM) gasoline engines, as well as the previous "6L80" six-speed automatic transmission, leaving only the 8-speed and 10-speed available.
It allows a V6 or V8 engine to "turn off" half of the cylinders under light-load conditions to improve fuel economy. Estimated performance on EPA tests shows a 5.5–7.5% improvement in fuel economy. [1] GM's Active Fuel Management [2] technology used a solenoid to deactivate the lifters on selected cylinders of a pushrod V-layout engine.
5.3L V8 Chevrolet Silverado; 5.3L V8 Chevrolet Tahoe; 5.3L V8 Chevrolet Suburban; 5.3L V8 Chevrolet Avalanche; 3.5L V6 Chevrolet Impala; 5.3L V8 Chevrolet Express; 3.9L V6 Chevrolet Uplander; 2007. Impala; 5.3L Chevrolet Silverado; 4.6L Ford Crown Victoria (2-valve, excluding taxi and police units) 5.4L Ford F-150 (3-valve) 5.3L GMC Sierra (LMG V8)
1977–2013 Chevrolet 90° V6 engine (derived from the Chevrolet Small-Block" V8; now marketed as GM Vortec V6 or Vortec 4300 or EcoTec3 V6) 1979–2010 Chevrolet 60-Degree V6 1994–2005 Opel 54-Degree L81 V6 (used in the Saturn Vue , Cadillac Catera and Saturn L series )
Vortec 5300, replaced 5.7L V8 Flex-fuel capability standard from 2008 to 2014 (became optional for 2007) Available only on 1500 and light-duty 2500 vans; standard on 1500 passenger vans from 2007 to 2014 GM Generation IV small-block V8: 350 cu in (5.7 L) V8 Chevrolet small-block V8: 1996–2002 (L31) Vortec 5700, replaced by 5.3L V8 and 6.0L V8
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