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


Overall Rating

7.9 / 10
Safety N/A / 5
Not Rated
Engine 4.0 / 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 Long Bed Overview:

GMC Sierra 2500HD (V (GMTT1XX) Crew Cab Long Bed). With 629 Nm of torque, it offers ample pulling power. At around 3009 kg, it’s on the heavier side. Rear‑wheel drive offers dynamic handling and sporty feedback. 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) Automatic Verdict:

Rating 4 stars

Performance Verdict

Delivers solid power for hauling and towing, suitable for tasks not requiring four-wheel drive traction.

Fuel Economy

Fuel consumption will be high, typical for a large gasoline V8 in a heavy-duty pickup, though potentially slightly better than the 4WD variant.

Best Use Case: On-road heavy hauling, commercial fleet use, and towing where 4WD is not a necessity.

Pros and Cons:

Pros:

  • • Exceptional towing and hauling capabilities.
  • • Powerful engine options, especially the Duramax diesel.
  • • Robust and durable construction for heavy-duty work.
  • • Spacious and comfortable crew cab interior.
  • • Advanced towing technologies and safety features.

Cons:

  • • Large size can be challenging for urban maneuvering and parking.
  • • Fuel economy is poor for gasoline models, and still significant for diesel.
  • • Ride quality can be stiff when unloaded, typical for HD trucks.
  • • High purchase price and running costs.

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 Long Bed
Modification (Engine):6.6 V8 (401 Hp) 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:7.5 kg/Hp, 133.3 Hp/tonne
Weight-to-torque ratio:4.8 kg/Nm, 209 Nm/tonne
Space:
Kerb Weight:3009
Max. weight:4672
Max load:1663
Permitted trailer load with brakes (12%):6577 kg
Fuel tank capacity:136 l
Size:
Length:6759 mm mm [196mm more]
Width:2079 mm mm [34mm more]
Height:2023 mm mm [43mm more]
Wheelbase:4369 mm mm [111mm more]
Width including mirrors:2079 mm
Front track:1731 mm
Rear (Back) track:1736 mm
Ride height (ground clearance):256 mm
Powertrain:
Drivetrain ArchitectureThe Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheelRear wheel drive
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

Does the GMC Sierra 2500HD live up to the hype? Give us your verdict!