GMC Sierra 2500HD V (GMTT1XX) Crew Cab Standard Bed 6.6 V8 (401 Hp) 4WD Automatic


Overall Rating

7.8 / 10
Safety N/A / 5
Not Rated
Engine 3.8 / 5
Value 3.8 / 5
Performance 4.5 / 5
Comfort 3.5 / 5
People\'s Opinion N/A / 5
Not Rated

GMC Sierra 2500HD:

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)

V (GMTT1XX) Crew Cab Standard Bed Overview:

GMC Sierra 2500HD (V (GMTT1XX) Crew Cab Standard Bed). With 629 Nm of torque, it offers ample pulling power. At around 3095 kg, it’s on the heavier side. 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.

6.6 V8 (401 Hp) 4WD Automatic Verdict:

Rating 4 stars

Performance Verdict

The 6.6L L8T gasoline V8 offers strong, naturally aspirated power (401 Hp, 629 Nm) suitable for hauling and everyday tasks, providing ample capability for most heavy-duty needs.

Fuel Economy

As a large displacement gasoline V8 in a heavy-duty 4WD truck, fuel economy is expectedly low, making it less efficient than its diesel counterpart.

Best Use Case: General heavy-duty work, occasional towing, and daily driving where the lower upfront cost of a gasoline engine is preferred over diesel.

Pros and Cons:

Pros:

  • • Exceptional towing and hauling capabilities
  • • Powerful engine options (gas and diesel)
  • • Spacious and functional crew cab interior
  • • Robust build quality and durability for heavy-duty tasks
  • • Advanced trailering technology available

Cons:

  • • Significant fuel consumption, especially with the gas V8
  • • Large dimensions can make maneuvering challenging in urban environments
  • • Ride quality can be stiff, typical for a heavy-duty truck
  • • High purchase price and running costs
  • • Limited advanced driver-assistance systems compared to passenger vehicles

Specifications:

Specifications are compared to those of the previous generation(IV (GMTK2XX) Crew Cab Long Box: 2017 - 2019).

General:
Brand:GMC
Model:Sierra 2500HD
Generation:V (GMTT1XX) Crew Cab Standard Bed
Modification (Engine):6.6 V8 (401 Hp) 4WD Automatic
Start of production:2020
End of production:2023
Powertrain Architecture:Internal Combustion engine
Body type:Pick-up
Seats:5
Doors:4
Engine:
Power:401 Hp @ 5200 rpm. Same horsepower
Torque:629 Nm @ 4000 rpm.
Engine Model/Code:L8T More details about the engine L8T
Number of cylinders:8
Engine configuration:V-engine
Number of valves per cylinder:2
Fuel injection system:Direct injection
Engine aspiration:Naturally aspirated engine
Valvetrain:OHV, VVT
Engine oil capacity:7.6 l
Coolant:14.6 l
Engine layout:Front, Longitudinal
Cylinder Bore:103.25 mm mm
Piston Stroke:98 mm mm
Compression ratio:10.8:1
Performance:
Fuel Type:Petrol (Gasoline)
Weight-to-power ratio:7.7 kg/Hp, 129.6 Hp/tonne
Weight-to-torque ratio:4.9 kg/Nm, 203.2 Nm/tonne
Space:
Kerb Weight:3095
Max. weight:4750
Max load:1655
Permitted trailer load with brakes (12%):6577 kg
Fuel tank capacity:136 l
Size:
Length:6352 mm mm [211mm less]
Width:2079 mm mm [34mm more]
Height:2027 mm mm [47mm more]
Wheelbase:4037 mm mm [221mm less]
Width including mirrors:2079 mm
Front track:1731 mm
Rear (Back) track:1736 mm
Ride height (ground clearance):257 mm
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, 355x40 mm [Best for performance and cooling.]
Rear brakesVentilated discs, 360x34 mm [Best for performance and cooling.]
Assisting systemsABS (Anti-lock braking system)
Steering typeCone worm with recirculation balls
Power steeringHydraulic Steering
Tires size265/70 R17; 245/75 R17; 275/70 R18
Wheel rims size7.5J x 17; 8J x 18
Front suspensionCoil spring, Double wishbone, Transverse stabilizer
Rear suspensionRigid axle suspension, Leaf spring

Your first impression of the GMC Sierra 2500HD in one word? Go!