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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 ]
The 3500 series came standard with dual rear wheels (the only short-bed GM pickup to have such a feature), a 7.4L V8 (or a 6.5L V8 diesel), and a 9,400 pound GVWR. For 2000, the C/K and Sierra Classic were pared down to the 2500 and 3500 series (above 8,500 pounds GVWR), [ 4 ] [ 15 ] with the model line reduced solely to the C3500HD chassis cab ...
The 305 also became the standard V8 in GM's C/K truck series, and was even used in the Corvette for California in 1980. Crankshafts used with the 305 had the same casting number as the 350 with one discernible difference—the 305 crank is lighter in weight to compensate for engine balancing.
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.
The optional Camper Special package (available on 3⁄4-ton and 1-ton pickups) added heavier duty springs, shocks and sway bars to increase maximum payload to accommodate slide-in pickup truck campers. The wheelbase length was extended to 117.5 in (2,985 mm) for short wheelbase pickups, and 131.5 in (3,340 mm) for long wheelbase pickups. For 1 ...
For its 2002 debut, the GMT360 Envoy received an all-new standard engine, with a Vortec 4200 4.2L inline-6 replacing the previous 4.3L V6. The first inline-6 from GM in North America since 1984, the "Atlas" engine produced 270 hp (80 more than its V6 predecessor). Beginning in 2003, the Envoy XL could be equipped with an optional 290 hp 5.3L V8.
The 2.2l S10/Sonoma had the starter located in the same position as front wheel drive cars. A rear wheel drive bellhousing is displayed at right, and the integrated front wheel drive bellhousing is displayed at the lower right (in this case, as a part of the GM 6T70 Transmission). GM 60-Degree 2.8/3.1/3.4/3.5/3.9 L V6 (also used by AMC) Buick ...
The engine is a modified version of the Vortec engine found in the standard Jimmy, which originally produced 190 hp (142 kW). [2] The engine uses a Mitsubishi TD06-17C/8 cm 2 turbocharger producing 14 psi (0.97 bar) of boost and a Garrett Water/Air intercooler , as well as revised intake manifolds , fuel system, exhaust manifolds, and a 48 mm ...