GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020

Key specs

Gmc Sierra 2500HD (Pick-up) Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 2020,2021,2022,2023

What is the body type, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

Pick-up, 4 Doors, 5 Seats

How much power, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

401 Hp @ 5200 rpm.
61.09 Hp/l

What is the engine size, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

6564 cm3
400 cu. In.

How many cylinders, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

8, V-engine

What is the drivetrain, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

Rear wheel drive,

How long is this vehicle, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

6514 mm
256.46 in.

How wide is the vehicle, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

#N/D

What is the curb weight, GMC Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 6.6 V8 (401 Hp) Automatic 2020?

2967 kg
6541.12 lbs.

Gmc Sierra 2500HD (Pick-up) Sierra 2500HD V (GMTT1XX) Double Cab Long Bed 2020,2021,2022,2023 Specs

General information

Brand GMC
Model Sierra 2500HD (Pick-up)
Version Sierra 2500HD V (GMTT1XX) Double Cab Long Bed
Engine version 6.6 V8 (401 Hp) Automatic
Year production start 2020
Year production end 2023
Vehicle type Pick-up
Horsepower RPM 401 Hp @ 5200 rpm.
Curb weight kg -lbs total

2967 kg

6541.12 lbs.
Overall length mm - inch

6514 mm

256.46 in.
Doors 4

Engine specs

Designation model L8T
Cam configuration OHV, VVT
Engine position and orientation Front, Longitudinal
Cylinders 8
Position of cylinders V-engine
Block/Head composition cast iron / cast aluminium
Displacement (liters)

6564 cm3

400 cu. In.
Eng. horsepower RPM 401 Hp @ 5200 rpm.
Horsepower per litre 61.09 Hp/l
Weight / horsepower kg/hp - hp/tons

7.4 kg/Hp

135.2 Hp/tonne
Weight / torque kg/Nm - Nm/tons 4.7 kg/Nm, 212 Nm/tonne

4.7 kg/Nm

212 Nm/tonne
Torque Nm RPM lb-ft RPM

629 Nm @ 4000 rpm.

463.93 lb.-ft. @ 4000 rpm.
Bore (mm in)

103.25 mm

4.06 in.
Stroke (mm in)

98 mm

3.86 in.
Compression ratio 10.8
Fuel delivery system Direct injection
Fuel type Petrol (Gasoline)
Valvetrain 2
Engine aspiration Naturally aspirated engine
Engine oil liters | quarts

7.6 l

8.03 US qt | 6.69 UK qt
Engine coolant

14.6 l

15.43 US qt | 12.85 UK qt
Powertrain architecture Internal Combustion engine

Transmission and Drive system

Drive configuration Rear wheel drive

Brakes

Front brakes Ventilated discs, 355x40 mm
Rear brakes Ventilated discs, 360x34 mm
Anti-lock brake system ABS (Anti-lock braking system)

Steering

Steering type Cone worm with recirculation balls

Suspension

Front suspension Coil spring, Double wishbone, Transverse stabilizer
Rear suspension Rigid axle suspension, Leaf spring

Body / Chassis

Wheels & Tyres

Wheels size 265/70 R17; 245/75 R17; 275/70 R18
Wheels rims 7.5J x 17; 8J x 18

Exterior

Interior

Safety and Security

Passenger

Passengers seats 5

Dimensions

Overall length mm - inch

6514 mm

256.46 in.
Overall height mm -inch

2027 mm

79.8 in.
Wheelbase mm - inch

4127 mm

162.48 in.
Track width front mm - inch

1731 mm

68.15 in.
Track width rear mm - inch

1736 mm

68.35 in.

Weights

Curb weight kg -lbs total

2967 kg

6541.12 lbs.
Gross weight kg -lbs total

4627 kg

10200.79 lbs.
Capacities kg - lbs

1660 kg

3659.67 lbs.
Fuel tank liters | gallons

136 l

35.93 US gal | 29.92 UK gal

Fuel economy

Engine type

8 CYLINDER V-Engine
It's an engine with eight cylinder piston where the cylinders share a common crankshaft and are arranged in a V configuration.

What is the 8 cylinder V-engine displacement: it is in a range between 2926 cc and 8135 cc in recent model line up powertrain.

How much is the power of the 8 cylinder V-engine: the power of the 8 cylinder V-engine is in a range from 125 bhp to 1160 bhp.

Which cars use 8 cylinder V-engine: in recent years several manufactures have been used the V8 engine for 3 main applications: premium, sport cars and lightweight trucks. 8 V engine is the American preferred engine for iconic giant pick-up.

What is the eight cylinder V angle: the majority of V8 engines use a V-angle of 90 degrees. This angle results in good engine balance and low vibrations. The downside is a larger powertrain body that makes the use of this configuration suitable only for longitudinal position and rear drive wheels traction.

V8 engines with a 60 degree V-angle were used in the 1996-1999 by Ford and in 2005-2011 by Volvo. The Ford engine used a 60 degree V-angle because it was based on a V6 engine with a 60 degree V-angle. Both the Ford and Volvo engines were used in transverse engine chassis, which were designed for a front-wheel-drive layout. To reduce the vibrations caused by the unbalanced 60 degree V-angle, Volvo's used a balance shaft and offset split crankpins.

The Rolls-Royce Meteorite tank engine also used a 60 degree V-angle, since it was derived from the 60 degree V12 Rolls-Royce Meteor which in turn was based on the famous Rolls-Royce Merlin V12 engine.

Most V8 engines fitted to road cars use a cross-plane crankshaft, since this configuration produces less vibration due to the perfect primary balance and secondary balance.

The rumbling exhaust sound produced by a typical cross-plane V8 engine is partly due to the uneven firing order within each of the two banks of four cylinders and with separate exhaust systems for each bank of cylinders, this uneven pulsing creates the legendary rumbling sound that is typically of V8 engines.

edited by arrabbiata

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