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Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic

General information
No photo
Power 401 Hp @ 5200 rpm.
Torque 629 Nm @ 4000 rpm.
Brand
GMC
Model
Sierra 3500HD
Generation
Sierra 3500HD V (GMTT1XX) Regular Cab Long Bed
Modification (Engine)
6.6 V8 (401 Hp) DRW Automatic
Start of production
2020 year
End of production
2023 year
Powertrain Architecture
Internal Combustion engine
Powertrain architecture classifies the propulsion technology of the vehicle, such as internal combustion, electric (BEV), or hybrid.
Body type
Pick-up
Body type refers to the structural design and shape of the vehicle (such as Sedan, Hatchback, SUV, or Coupe).
Seats
2
Seat count specifies the maximum passenger capacity the vehicle is legally approved to transport at once.
Doors
2
Door count indicates the total number of entry points for passengers and cargo access (e.g., 3-door, 5-door).

Gmc Sierra 3500HD Review

Introduced in 2020, the Gmc Sierra 3500HD (generation Sierra 3500HD IV (GMTK2XX) Crew Cab Long Box) is a classic Pick-up offering the 6.6 V8 (401 Hp) 4WD SRW Automatic specification. Its propulsion comes from a setup, generating a respectable 401 Hp @ 5200 rpm.. Featuring Naturally aspirated engine aspiration, it produces a peak torque of 629 Nm @ 4000 rpm. for robust performance.

Known for its technical specifications and performance, the Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic (2020 - 2023) remains a popular choice for many drivers. Technically satisfying, the model responds to driver expectations with its 401 Hp @ 5200 rpm. unit. Offering balance and comfort, the model is great for daily use. In a general assessment, the technical package of the Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic focuses on user satisfaction.
📊 Model Comparison AnalysisThis model has **44 Hp** lower power than 6.6 Duramax TD V8 (445 Hp) 4WD DRW Automatic. This model has **44 Hp** lower power than 6.6 Duramax TD V8 (445 Hp) 4WD SRW Automatic.
FAQ
How many horsepower does Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic have? +
The Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic model is equipped with an engine producing 401 Hp @ 5200 rpm. total horsepower.
What drivetrain does the Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic have? +
This model transfers power to the road via a Rear wheel drive drivetrain.
Is the Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic a good car? +
Considering the technical specs and market position, the Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic is a highly competitive and desirable model in its class.
Is Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic reliable? +
The Gmc 6.6 V8 (401 Hp) 4WD SRW Automatic is built with high engineering standards and is generally considered a reliable vehicle with proper maintenance.
Performance specs
Fuel Type
Petrol (Gasoline)
Fuel type defines the primary source of energy required by the vehicle’s engine (petrol, diesel, electricity, hybrid, LPG, etc.).
Weight-to-power ratio
7.4 kg/Hp, 135.6 Hp/tonne
Weight-to-torque ratio
4.7 kg/Nm, 212.7 Nm/tonne
Engine specs
Power
401 Hp @ 5200 rpm.
Torque
629 Nm @ 4000 rpm.
Torque represents the engine’s rotational force, which determines pulling power. High torque ensures responsive acceleration and stronger uphill performance.
Engine layout
Front, Longitudinal
Engine layout defines the position and alignment of the engine block. This layout affects the car’s weight distribution, handling, and interior cabin space.
Engine Model Code
L8T
Number of cylinders
8
Cylinder count represents the number of combustion chambers. More cylinders generally result in smoother operation and a refined engine note.
Engine configuration
V-engine
Cylinder bore
103.25 mm
Piston stroke
98 mm
Compression ratio
10.8:1
Number of valves per cylinder
2
Valves per cylinder control the airflow into and exhaust out of the engine. More valves improve high-RPM breathing and performance.
Fuel injection system
Direct injection
Engine aspiration
Naturally aspirated engine
Aspiration describes how the engine draws air into its cylinders, distinguishing naturally aspirated setups from turbochargers or superchargers.
Valvetrain
OHV, VVT
Engine oil capacity
7.6 l
Coolant
14.6 l
Space, Volume and weights
Kerb Weight
2957 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. weight
6350 kg
Curb weight is a key parameter affecting fuel consumption, handling agility, acceleration times, and stopping distances.
Max. load
3393 kg
Fuel tank capacity
136 l
Permitted trailer load with brakes (12%)
7620 kg
Dimensions
Length
5982 mm
Width including mirrors
2457 mm
Height
2038 mm
Wheelbase
3595 mm
Front track
1731 mm
Rear / Back Track
1905 mm
Ride height (ground clearance)
266 mm
Drivetrain, brakes and suspension specs
Drivetrain Architecture
The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Drive wheel
Rear wheel drive
Drivetrain type specifies which wheels receive power from the engine. This affects road grip, cornering, and stability on slippery surfaces.
Number of gears and type of gearbox
6 gears, automatic transmission Hydra-Matic
Front suspension
Coil spring, Double wishbone, Transverse stabilizer
The suspension system absorbs road bumps, providing cabin comfort and keeping tires firmly planted on the road surface.
Rear suspension
Rigid axle suspension, Leaf spring
The suspension system absorbs road bumps, providing cabin comfort and keeping tires firmly planted on the road surface.
Front brakes
Ventilated discs, 355x40 mm
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Rear brakes
Ventilated discs, 355x40 mm
The brake system is a vital safety component that uses friction to slow down or bring the vehicle to a complete stop.
Assisting systems
ABS (Anti-lock braking system)
Steering type
Cone worm with recirculation balls
Power steering
Hydraulic Steering
Tires size
265/70 R17; 245/75 R17; 275/70 R18
Tire size specifies the tread width, aspect ratio, and rim diameter, affecting the balance between handling grip and ride comfort.
Wheel rims size
7.5J x 17; 8J x 18
Common OBD2 Fault Codes
P1146 🔴 High
Manufacturer Specific Engine Fault Code P1146
Diagnostic Guide
P1148 🔴 High
Manufacturer Specific Engine Fault Code P1148
Diagnostic Guide
P1150 🔴 High
Manufacturer Specific Engine Fault Code P1150
Diagnostic Guide
P1152 🔴 High
Manufacturer Specific Engine Fault Code P1152
Diagnostic Guide
Similar Models
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6.6 V8 (401 Hp) 4WD SRW Automatic
Gmc Sierra 3500HD 6.6 V8 (401 Hp) 4WD DRW Automatic
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Gmc Sierra 3500HD 6.6 Duramax TD V8 (470 Hp) SRW Automatic
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User Reviews
J
James S.
14 months ago
★★★★★
Been driving it for 3 months now. The 401 Hp @ 5200 rpm. hp feels more than enough for daily driving. Suspension handles bumps and rough roads very smoothly. If you are thinking about buying one, go test drive it.
O
Oliver 84
25 months ago
★★★★☆
Finally got the keys today. Very responsive throttle, makes highway overtaking a breeze. Sound insulation is great, very quiet cabin at high speeds. Value for money is unmatched, highly recommended.
A
Arthur K.
6 weeks ago
★★★★★
Switched from a different brand. Engine performance exceeded my expectations. The exterior design looks sharp and modern in person. I highly recommend it, won't disappoint.
J
James 95
26 days ago
★★★★★
Ordered it immediately after a quick test drive. Engine performance exceeded my expectations. The handling in corners is very safe. Definitely a solid choice in this price range.
J
James V.
7 days ago
★★★★☆
Does anyone experience any rattles or squeaks over time?
N
Noah 77
19 months ago
★★★★☆
Mainly using it for my daily commute to work. N/A economy is better than I expected. Sound insulation is great, very quiet cabin at high speeds. Definitely a solid choice in this price range.

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