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The Vortec 5700 L31 (VIN code "R") is a 5.7L V8 truck engine. It is Chevrolet's last production first-generation small-block. The cylinder heads feature combustion chambers and intake ports very similar to those of the LT1 V8, but lacking the LT1's reverse-flow cooling and higher compression.
Wards 10 Best Engines is an annual list of the ten "best" automobile engines available in the U.S. market, that are selected by Wards AutoWorld magazine. The list was started in 1994 for model year 1995, and has been drawn every year since then, published at the end of the preceding year.
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 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.
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 1500 series came standard with the 5.3 L Vortec 5300 V8, but the 4.8 L Vortec 4800 V8 could be ordered with an option credit if so desired. 2500HD models came with the 6.0 L Vortec 6000 V8 only. All trucks had the four-speed automatic transmission with tow/haul mode. Customers could choose from either SLE or SLT Decor.
The addition of EFI and picking up the Vortec 7400 name took place in 1996 which was replaced with the Vortec 8100 platform once the 7400 was retired. Chevrolet Performance released the 454 again in 2011 as a small-block crate engine dubbed the LSX454R officially rated at 776 horsepower at 7,000 rpm and 649 lb-ft of torque at 5,100 rpm.
The resulting 3.0 L (181 cu in) engine, branded the Vortec 3000, was never installed in passenger cars. The Vortec 3000 was manufactured in Mexico where 1992–2015 engines had a one-piece rear seal similar to the one used with the Chevrolet small-block and 90-degree V6. The flywheel bolt pattern for the later-production 3-liter does not ...
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