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Depending on components and computer module the Vortec 5700 produces 255 hp (190 kW) to 350 hp (261 kW) at 4600 rpm and 330 lb⋅ft (447 N⋅m) to 350 lb⋅ft (475 N⋅m) of torque at 2800 rpm. [ clarification needed ] [ citation needed ] Known as the GEN 1+, the final incarnation of the 1950s-vintage small-block ended production in 2003.
The LB1 used in trucks and vans was referred to as Vortec in Chevrolet literature (named after a combustion chamber design known as a swirl port which twists the fuel mix from the intake ports as introduced with the Cavalier's 2.0L engine), and this name continued to be used with all truck and van 4.3 L (262 cu in) V6s until 2014.
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 ]
The LLV (also called Vortec 2900) is a 2.9 L; 178.3 cu in (2,921 cc) straight-4 DOHC engine produced between 2007 and 2012, with a 95.5 mm × 102 mm (3.76 in × 4.02 in) bore and a stroke. It replaced the LK5 and produced 185 hp (138 kW) at 5,600 rpm and 190 lb⋅ft (258 N⋅m) of torque at 2,800 rpm.
The fuel-injection system for the Vortec 8100 is nearly identical to that used on Gen III small-block engines, right down to the fuel and spark tables in the ECU. [63] GM sold the Vortec 8100 to Workhorse (now a division of Navistar), making it one of the most popular engine choices in gasoline-powered Class A motorhomes during the early 2000s.
The LF9 is a 350 cu in (5.7 L) diesel V8 produced from 1978 to 1985. Earlier versions and those used in pickups (1978-1981) produced 120 hp (89 kW) at 3,600 rpm and 220 lb⋅ft (298 N⋅m) torque at 1,900 rpm, while later versions produced 105 hp (78 kW) and 205 lb⋅ft (278 N⋅m) torque.
The much improved 3RZ-FE engine features a 9.5:1 compression ratio and uses newer technology such as a hot wire mass airflow sensor, knock sensor, and a narrow angle dual camshaft cylinder head. The result is a more powerful engine with much improved efficiency, achieving 17–21 miles per gallon [ 3 ] when used in a daily driven rock crawler.
The LP9 is a 2.8L turbocharged version used for the Saab 9-3, Saab 9-5, and other GM vehicles. It has the same bore and stroke as the naturally aspirated LP1, however the compression ratio is reduced to 9.5:1. The engine is manufactured at Holden's Fishermans Bend engine factory in Port Melbourne, Australia, while GM Powertrain Sweden (formerly ...