Vortec is a trademarked name for a line of
gasoline
Gasoline (; ) or petrol (; ) (see ) is a transparent, petroleum-derived flammable liquid that is used primarily as a fuel in most spark-ignited internal combustion engines (also known as petrol engines). It consists mostly of organic co ...
engines
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy.
Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power ...
for
General Motors
The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and ...
truck
A truck or lorry is a motor vehicle designed to transport cargo, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame construction ...
s. The name first appeared in an advertisement for the 1985 model year 4.3 L
V6 that used "vortex technology" to create a
vortex
In fluid dynamics, a vortex ( : vortices or vortexes) is a region in a fluid in which the flow revolves around an axis line, which may be straight or curved. Vortices form in stirred fluids, and may be observed in smoke rings, whirlpools in th ...
inside the
combustion chamber
A combustion chamber is part of an internal combustion engine in which the fuel/air mix is burned. For steam engines, the term has also been used for an extension of the firebox which is used to allow a more complete combustion process.
Interna ...
, creating a better air/fuel atomization. Now it is used on a wide range of engines. Modern Vortec engines are named for their approximate
displacement
Displacement may refer to:
Physical sciences
Mathematics and Physics
*Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
in
cubic centimeters
A cubic centimetre (or cubic centimeter in US English) (SI unit symbol: cm3; non-SI abbreviations: cc and ccm) is a commonly used unit of volume that corresponds to the volume of a cube that measures 1 cm × 1 cm × 1 cm. One cu ...
.
*I4
** For the Vortec 2200 see
General Motors 122 engine
The 122 engine was designed by Chevrolet and was used in a wide array of General Motors vehicles. The ''122'' was similar to the first two generations of the General Motors 60° V6 engine; sharing cylinder bore diameters and some parts . The ''12 ...
.
** For the Vortec 2800 see
General Motors Atlas engine
Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Buick Rainier, the Chevrolet T ...
.
** For the Vortec 2900 see
General Motors Atlas engine
Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Buick Rainier, the Chevrolet T ...
.
*I5
** For the Vortec 3500 see
General Motors Atlas engine
Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Buick Rainier, the Chevrolet T ...
.
** For the Vortec 3700 see
General Motors Atlas engine
Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Buick Rainier, the Chevrolet T ...
.
*I6
** For the Vortec 4200 see
General Motors Atlas engine
Atlas is a name for a family of modern inline piston engines for trucks from General Motors, used in the GMT355 and GMT360 platforms. The series debuted in 2002 with the Oldsmobile Bravada, and is also used in the Buick Rainier, the Chevrolet T ...
.
*V6
** For the Vortec 4300 see
Chevrolet 90° V6 engine
The Chevrolet 90° V6 family of V6 engines began in 1978 with the Chevrolet 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 V6 engine used in Chevrol ...
.
*V8
** For the Vortec 4800 see
General Motors small-block engine
"LS engine" is the colloquial name given to the third and fourth generation small-block V8 gasoline engine used in General Motors' vehicles. The name evolved from the need to differentiate the Gen 3/Gen 4 small blocks from the original Gen 1/ ...
.
** For the Vortec 5000 see
Chevrolet small-block engine Chevrolet small-block engine refers to one of a number of gasoline-powered vehicle engines manufactured by the General Motors company. These include:
* The III, IV, V generation of LS-based GM engines.
* The I, II generation of non-LS Chevrolet ...
.
** For the Vortec 5300 see
General Motors small-block engine
"LS engine" is the colloquial name given to the third and fourth generation small-block V8 gasoline engine used in General Motors' vehicles. The name evolved from the need to differentiate the Gen 3/Gen 4 small blocks from the original Gen 1/ ...
.
** For the Vortec 5700 see
Chevrolet small-block engine Chevrolet small-block engine refers to one of a number of gasoline-powered vehicle engines manufactured by the General Motors company. These include:
* The III, IV, V generation of LS-based GM engines.
* The I, II generation of non-LS Chevrolet ...
.
** For the Vortec 6000 see
General Motors small-block engine
"LS engine" is the colloquial name given to the third and fourth generation small-block V8 gasoline engine used in General Motors' vehicles. The name evolved from the need to differentiate the Gen 3/Gen 4 small blocks from the original Gen 1/ ...
.
** For the Vortec 6200 see
General Motors small-block engine
"LS engine" is the colloquial name given to the third and fourth generation small-block V8 gasoline engine used in General Motors' vehicles. The name evolved from the need to differentiate the Gen 3/Gen 4 small blocks from the original Gen 1/ ...
.
** For the Vortec 6600 see
General Motors small-block engine
"LS engine" is the colloquial name given to the third and fourth generation small-block V8 gasoline engine used in General Motors' vehicles. The name evolved from the need to differentiate the Gen 3/Gen 4 small blocks from the original Gen 1/ ...
.
** For the Vortec 7400 see
Chevrolet Big-Block engine
The Chevrolet "big block" engine is a term for a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V-8 engines; that were developed and produced by the Chevrolet Division of General Motors, from the 1 ...
.
** For the Vortec 8100 see
Chevrolet Big-Block engine
The Chevrolet "big block" engine is a term for a series of large-displacement, naturally-aspirated, 90°, overhead valve, gasoline-powered, V-8 engines; that were developed and produced by the Chevrolet Division of General Motors, from the 1 ...
.
References
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General Motors engines