GMC Sierra 1500 III (GMT900) Extended Cab Long Box 6.2 Vortec V8 (403 Hp) 4WD Automatic FlexFuel


Overall Rating

7.8 / 10
Safety N/A / 5
Not Rated
Engine 4.0 / 5
Value 3.7 / 5
Performance 4.0 / 5
Comfort 3.8 / 5
People\'s Opinion N/A / 5
Not Rated

GMC Sierra 1500:

The Chevrolet Silverado is a range of trucks manufactured by General Motors under the Chevrolet brand. Introduced for the 1999 model year, the Silverado is the successor to the long-running Chevrolet C/K model line. Taking its name from the top trim level from the Chevrolet C/K series, the Silverado is offered as a series of full-size pickup trucks, chassis cab trucks, and medium-duty trucks. The fourth generation of the model line was introduced for the 2019 model year.
The Chevrolet Silverado shares mechanical commonality with the identically related GMC Sierra; GMC ended the use of the C/K nomenclature a model generation prior to Chevrolet. In Mexico, high-trim level versions of the Silverado use the Chevrolet Cheyenne name Starting with the LT trim. Standard and "Custom" trims are still called Silverado. Competing against the Ford F-Series, Ram pickup, Toyota Tundra, and Nissan Titan, the Silverado is among the best-selling vehicles in the United States, having sold over 12 million trucks since its introduction in 1998 as a 1999 model year....(Read more on Wikipedia)

III (GMT900) Extended Cab Long Box Overview:

GMC Sierra 1500 (III (GMT900) Extended Cab Long Box). With 565 Nm of torque, it offers ample pulling power. All‑wheel drive provides excellent grip, ideal for off‑road use. A vehicle with an open cargo bed at the back, suitable for transporting goods. Seating for 5 makes it ideal for daily use.

6.2 Vortec V8 (403 Hp) 4WD Automatic FlexFuel Verdict:

Rating 5 stars

Performance Verdict

The powerhouse of the lineup, delivering exceptional acceleration and towing capability, ideal for demanding tasks.

Fuel Economy

As expected, this engine is very thirsty, especially with 4WD engaged and under load. Fuel economy is a significant compromise.

Best Use Case: Heavy towing, maximum hauling, performance enthusiasts, and off-road applications requiring significant power.

Pros and Cons:

Pros:

  • • Powerful and diverse V8 engine lineup for various needs.
  • • Excellent towing and hauling capabilities.
  • • Spacious and comfortable Extended Cab interior.
  • • Robust and durable GMT900 platform.
  • • Available FlexFuel options for fuel versatility.

Cons:

  • • Poor fuel economy across all engine options.
  • • Interior design, while functional, can feel dated compared to rivals.
  • • Large size can make city driving and parking challenging.
  • • Ride quality can be firm, especially when unladen.
  • • Rear drum brakes on some trims are a drawback.

Specifications:

Specifications are compared to those of the previous generation(III (GMT900) Crew Cab Short Box: 2009 - 2013).

General:
Brand:GMC
Model:Sierra 1500
Generation:III (GMT900) Extended Cab Long Box
Modification (Engine):6.2 Vortec V8 (403 Hp) 4WD Automatic FlexFuel
Start of production:2010
End of production:2013
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:5
Doors:2
Engine:
Power:403 Hp @ 5700 rpm.
Power per litre:65.4 Hp/l
Torque:565 Nm @ 4300 rpm.
Engine Model/Code:L9H [Same engine] More details about the engine L9H
Engine displacement:6162
Number of cylinders:8
Engine configuration:V-engine
Number of valves per cylinder:2
Fuel injection system:Multi-port manifold injection
Engine aspiration:Naturally aspirated engine
Valvetrain:OHV
Engine oil capacity:5.7 l
Coolant:11.9 l
Engine layout:Front, Longitudinal
Cylinder Bore:103.25 mm mm
Piston Stroke:92 mm mm
Compression ratio:10.5:1
Maximum engine speed:6000 rpm.
Performance:
Fuel Type:Petrol / Ethanol - E85
Fuel consumption (economy) - urban:19.6 l/100 km
Fuel consumption (economy) - extra urban:12.4 l/100 km
Space:
Max. weight:3175
Trunk (boot) space - maximum:2138 l
Fuel tank capacity:128 l
Size:
Ramp-over (brakeover) angle:19.3°
Length:6325 mm mm [481mm more]
Width:2031 mm mm [Same width.]
Height:1868 mm mm [7mm less]
Wheelbase:4001 mm mm [356mm more]
Width including mirrors:2031 mm
Front track:1732 mm
Rear (Back) track:1702 mm
Ride height (ground clearance):240 mm
Minimum turning circle (turning diameter):15.6 m [above average]
Approach angle:15.5°
Departure angle:23.3°
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels permanently, and the front wheels are driven through an electrically or mechanically operated clutch if necessary.
Drive wheelAll wheel drive (4x4)
Number of gears6
Transmission typeAutomatic
Gearbox typeHydra-Matic
Front brakesVentilated discs, 330.2x30 mm [Best for performance and cooling.]
Rear brakesDisc, 342.9x20 mm [above average]
Assisting systemsABS (Anti-lock braking system)
Steering typeSteering rack and pinion
Power steeringElectric Steering
Tires size265/70 R17
Wheel rims size7.5J x 17
Front suspensionIndependent coil spring
Rear suspensionRigid axle suspension, Leaf spring

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