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GM offered it in their Performance Parts catalog, available as multiple crate motors with horsepower ratings from 338 to 600 hp (252 to 447 kW) and torque of 470 to 567 lb⋅ft (637 to 769 N⋅m) in "Base" and "Deluxe" packages. [44]
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 ]
In 1955 and 1956, it was 324 cubic inches (5.3 L). Power listed for 1956 was 210 hp @ 4200 rpm; torque was 305 lb-ft @ 2400 rpm. For the 1957 through 1959 model years, it was upped in bore and stroke and called the 370. Power was listed as 232 hp @ 4200 rpm and torque as 355 lb-ft @ 2600 rpm. [2]
The 1500HD, introduced in 2000 for the 2001 model year, offered a Vortec 6000 V8 with 300 hp (224 kW) at 5200 rpm and 360 lb⋅ft (488 N⋅m) of torque at 4000 rpm with a Hydra-Matic 4L80-E four-speed automatic transmission. The 1500HD was only available in a crew-cab, standard-box configuration and shares several mechanical components with the ...
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.
Later models introduced another version of the Vortec 5.3-liter V8 as the engine is now capable of running on E85 ethanol. On normal gasoline, it produces 320 hp (239 kW) and 335 lb⋅ft (454 N⋅m) of torque, whereas on E85, its output rises to 326 hp (243 kW) and 348 lb⋅ft (472 N⋅m) of torque, up from 310 hp (231 kW) and 335 lb⋅ft (454 ...
The Isuzu Hombre used a General Motors-built Vortec 2200 Engine with 118 hp (86 kW) and 140 ft·lb (190 N·m) of torque. 2004–2006 Isuzu i-Series used a General Motors-built Vortec 2800 Engine with 175 hp (130 kW) and 185 ft·lb (251 N·m) of torque.
Coinciding with the discontinuation of the 1500 series, the Vortec 4300 V6 (the final engine derived from the original Chevrolet small-block V8) was discontinued in 2014. After 2016, the 6.6 L Duramax diesel V8 was discontinued; a 2.8 L inline-4 Duramax (the first four-cylinder in a full-size Chevrolet van since 1964) replaced it as the diesel ...
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