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Vortec is a trademarked name for a line of gasoline engines for General Motors trucks. The name first appeared in an advertisement for the 1985 model year 4.3 L V6 that used "vortex technology" to create a vortex inside the combustion chamber , creating a better air / fuel atomization. [ 1 ]
This was so named because it began with Chevrolet's V8 engines. Chevrolet big-block V8s; Chevrolet small-block V8s; GM Vortec 4300 90° V6; GM Iron Duke RWD inline 4 (early RWD Variants, later versions may use a FWD pattern, and have two possible starter locations) Jeep with GM Iron Duke inline 4 2.5L/151 in 3 (1980-1983).
For 1996, the four gasoline engines underwent a series of design upgrades, becoming the Vortec 4300, 5000, 5700, and 7400, respectively. [14] To meet OBD-II compliance, the Vortec engines replaced throttle-body fuel injection with sequential fuel injection, redesigned engine camshaft and cylinder heads, along with longer-life engine coolant and ...
The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 200 cu in (3.3 L) as the base engine for the all new 1978 Chevrolet Malibu. The original engine family was phased out in early 2014, with its final use as the 4.3 L (262 cu in) V6 engine used in Chevrolet and GMC trucks and vans.
At the 2006 SEMA show, GM Performance Parts introduced the LSX engine, an all-new cast-iron racing block based on the LS7 engine. It was designed with help from drag racing legend Warren Johnson . It offers displacements ranging from 364 to 511 cu in (6.0 to 8.4 L) with a bore and stroke of 4 + 1 ⁄ 4 in × 4 + 1 ⁄ 2 in (108.0 mm × 114.3 mm ...
[3]: 341 Chevrolet and GMC trucks, which previously used the Stovebolt and GMC V6 engines, also switched to using the Turbo-Thrift from 1963 through 1988, as did Pontiac in 1964 and 1965. A 153-cubic-inch (2.5 L) inline-4 version of this engine was also offered in the Chevy II/Nova line through the 1970 model year.
For 2001, the Vortec 7400 was replaced by the longer-stroke Vortec 8100 (at 496 cubic inches, this is the largest-displacement engine ever factory-marketed by Chevrolet); the engine was offered for the Express through 2002. For 2003, the engine lineup underwent a series of revisions.
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) 1995–present Suzuki H (used in several models built for GM by Suzuki)