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2023 6.6 V8 (401 Hp) Automatic

Technical specifications and auto data, engine info, fuel consumption performance specs, dimensions and volumes

FULL CAR SPECIFICATIONS

GENERAL INFO

Select Units

Brand

GMC

Modification

6.6 V8 (401 Hp) Automatic

Body Type

Pick-up

Start of production

2023

Powertrain

ICE

Fuel type

Petrol (Gasoline)

Fuel tank capacity

136 l 35.93 US gal
29.92 UK gal

Power

401 hp (at 5200 rpm)

Torque

629 Nm (at 4000 rpm) 463.93 lb. ft (at 4000 rpm)

Drive Axle

Rear wheel drive

Gearbox type

Automatic

Number of Gears

10 Allison

Kerb weight

3056 kg 6737.3 lbs

Length

6776 mm 266.77 in

Doors

4

Seats

5

Wheel rims

7.5J x 17; 8J x 18; 8.5J x 20

ENGINE SPECIFICATION

Engine Model

L8T

Powertrain

ICE

Fuel type

Petrol (Gasoline)

Fuel system

Direct injection

Engine Location

Front, Longitudinal

Turbine

none

Power

401 hp (at 5200 rpm)

Torque

629 Nm (at 4000 rpm) 463.93 lb. ft (at 4000 rpm)

Number of cylinders

8

Valves per cylinder

2

Position of cylinders

V-engine

Cylinder Bore

103.25 mm 4.06 in

Piston Stroke

98 mm 3.86 in

Compression ratio

10.8

Valvetrain

OHV

Engine oil capacity

7.6 l 8.06 US qt
6.69 UK qt

Coolant

14.6 l 15.48 US qt
12.85 UK qt

POWER-TO-WEIGHT RATIO (PWR)

Color Index

Dynamic Efficiency

high Performance

DIMENSIONS

Length

6776 mm 266.77 in

Width including mirrors

2079 mm 81.85 in

Height

2023 mm 79.65 in

Wheelbase

4369 mm 172.01 in

Front track

1731 mm 68.15 in

Rear (Back) track

1736 mm 68.35 in

Ride height

256 mm 10.08 in

DRIVETRAIN, SUSPENSION & TIRES

Drive Axle

Rear wheel drive

Number of Gears

10 Allison

Brakes

- Front

Ventilated discs, 355x40 mm

- Rear

Ventilated discs, 360x34 mm

Assisting system

ABS

Steering type

Cone worm with recirculation balls

Power steering

Hydraulic Steering

Suspension

- Front

Independent torsion bar, double wishbone

- Rear

Rigid axle suspension, Leaf spring

Tire size

- Front

245/75 R17; 265/70 R17; 275/70 R18; 275/65 R20

Wheel rims

7.5J x 17; 8J x 18; 8.5J x 20

WEIGHTS & TRUNK SPACE

Kerb weight

3056 kg 6737.3 lbs

Max. weight

4672 kg 10300 lbs

Luggage capacity

- Max. roof load

1616 kg 3562.7 lbs

Max. trailer load with brakes

- 12%

7257 kg 15998.9 lbs

MODEL REVIEW
GMC Sierra 2500HD V (GMTT1XX, facelift 2024) Crew Cab Long Bed 6.6 V8 (401 Hp) Automatic is made in