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Make
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GMC
›
Model
›
G-Series
1978 GMC
G-Series
G2500
United States
Gasoline
RWD
LCV
Updated Aug 24, 2026
Image coming soon
Specifications
Vehicle Details
Powertrain
Engine & Performance
Dimensions & Weight
Exterior
Interior
Features
Safety & Security
Other
Vehicle Details
Year
1978
Make
GMC
Model
G-Series
Variant
G2500
Body Style
LCV
Generation
3rd Generation 2nd Facelift
Doors
4
Fuel
Gasoline
Drivetrain
RWD
Transmission
Automatic (Electrohydraulic), 3-speed
Powertrain
Engine Name
6.6 V8 Hydra-Matic
Engine Configuration
V
Power (hp)
177 hp
Power (kW)
131 kW
Torque
393 Nm (290 lb-ft)
Displacement
6,555 cc
Engine & Performance
Engine
Engine Specification
Rev. at Max Power
3,600 rpm
Rev. at Max Torque
2,800 rpm
Engine Fluids
Synthetic Oil (viscosity)
10W-30
Engine Oil, Volume
4.7 litres
Engine Fluids › Engine Coolant
IAT
Yes
Car Battery
Voltage
12 V
Alternator Charge Current
42 - 61 A
Alternator Voltage
14 V
Engine Configuration
Bore
104.8 mm
(4.1 in)
Stroke
95.25 mm
(3.8 in)
Compression Ratio
8.3 :1
Engine Configuration
V-Engine
Naturally Aspirated
Yes
Synchronization
Timing Chain
Engine Placement
Front
Engine Mount
Longitudinally
Type of Combustion Engine
Piston
Fuel System
Single (Number of Barrels) Carburator
Camshaft Type
OHC
Engine Block
Cast Iron
Engine Heads
Cast Iron
Engine Cooling
Liquid Cooling
Transmission & Drivetrain
Transmission
Automatic (Electrohydraulic), 3-speed
Gear Selector
Stalk
Gear Selector Location
Steering Column
Gear Ratio
1st Gear
2.48 :1
2nd Gear
1.48 :1
3rd Gear
1 :1
Final Drive
2.73 :1
Reverse
2.08 :1
Fuel
General
Tank Volume
79 - 125 litres
General › Fuel Cap Position
Rear
Left
Emission
Emission Control
Evaporative Control System
Exhaust Gas Recirculation
Positive Crankcase Ventilation
Brakes
Parking Brake
Manual
Pedal
Front Brakes
Disc Brakes
Rear Brakes
Drum Brakes
Front Brakes
Diameter
301 mm
(11.9 in)
Cooling
Ventilated
Rear Brakes
Diameter
283 mm
(11.1 in)
Suspensions
Spring, Front
Coil
Spring, Rear
Leaf (Longitudinal Spring)
Anti-roll Bar
Front
Suspension, Front
Independent
Double Wishbone
Suspension, Rear
Dependent
Beam Axle (Dead Axle)
Dimensions & Weight
Exterior
Track, Front
1,740 mm
(68.5 in)
Track, Rear
1,702 mm
(67.0 in)
Ground Clearance
188 mm
(7.4 in)
Weight
Gross Weight
2,903 - 2,994 kg
(6,400 - 6,601 lb)
Cargo Capacity
1,588 kg
(3,501 lb)
Permitted Axle Load, front
1,533 kg
(3,380 lb)
Permitted Axle Load, rear
1,533 kg
(3,380 lb)
LCV Specific
General
Version
L1H1
L1H2
L2H1
L2H2
Dimensions › Length
L1
4,526 mm
(178.2 in)
L2
5,136 mm
(202.2 in)
Dimensions › Height
L1H1
2,032 mm
(80.0 in)
Dimensions › Overhang, Rear
L1
2,794 mm
(110.0 in)
L2
3,175 mm
(125.0 in)
Dimensions › Turning Circle
L1
12.83 m
L2
14.26 m
Side Door › Side Door Width
L1
1,250 mm
(49.2 in)
L2
1,250 mm
(49.2 in)
Rear Doors › Rear Doors Height
L1H1
1,240 mm
(48.8 in)
L2H1
1,240
Rear Doors
Rear Doors Width
1,382 mm
(54.4 in)
Rear Doors › Sill Height
L1H1
643 mm
(25.3 in)
L2H1
643 mm
(25.3 in)
Cargo Space › Height
H1
1,364 mm
(53.7 in)
Cargo Space › Space Width, Between Wheel Arches
L1
1,359 mm
(53.5 in)
Exterior
Chassis & Body
Chassis
Chassis
LCV (Minibus)
Pillars
A-D
Chassis Construction
Unibody
Body Material
Steel
Protective Moldings
Optional
Doors
Front Doors
Conventional
Rear Doors
Sliding Right
Dual Swing-out
Equipment
Side Mirrors
Mirror Type
Conventional
House Colour
Chrome
Mirror Shape, Driver side
Flat
Mirror Shape, Passenger side
Flat
Windscreen Wipers
Number of Wiper Speeds
2
Intermittent Control
Optional
Windows
Heat-Insulating Windows
Front
First Row
Second Row
Rear
Sun Visors
Optional
Tinted Windows
Optional
Rear Windows, Pop-out
Optional
Rear Windows, Sliding
Optional
Windows › Tinted Windows
Second Row
Optional
Rear Window
Optional
Windows › Rear Windows, Pop-out
Manual
Optional
Other Equipment
Tow Hook
Front
Normal Roof
Yes
Antenna
Optional
Mud Flaps
Optional
Side Steps
Optional
Other Equipment › Mud Flaps
Front
Optional
Rear
Optional
Other Equipment › Side Steps
Stationary
Optional
Lights
Main Beam
Halogen
Low Beam
Halogen
Rear Lights
Halogen
Colour
Finish
Solid
Rims & Tires
Fastening Type
Lug Nuts
Rim Material
Steel
Rim Colour
Silver
Rim Type
Disc Wheel
Spare Wheel
Optional
Spare Wheel
Full-size
Optional
Spare Wheel › Full-size
Steel
Optional
Interior
Equipment
Instrument Cluster
Speedometer
Analogue
Fuel Gauge
Analogue
Odometer Limit
100,000 km/miles
Climate Control
Air Condition
Optional
Number of Vents, Front
4 pcs
Controls
Faders
Connectivity
Radio
Optional
Connectivity › Radio
AM
Optional
FM
Optional
Cassette
Optional
Speakers
Total Number of Speakers
2 - 4 pcs
Rear-view Mirror
Anti-glare
Manual
Interior Storage › Storage Compartments
Door
Driver Side
Passenger Side
Interior Storage
Cup Holders
Yes
Interior Storage › Cup Holders
Front
2
Interior Storage › Cup Holders › Front
Placement
Middle Console
Lights
Read Light
Front
Other Equipment
Clock
Optional
Carpets
Optional
Ashtray
Front (Retractable)
Other Equipment › Clock
Analogue
Optional
Steering Wheel
Power Steering
Hydraulic
Number of Spokes
2
Material
Plastic
Colour
Black
Steering Ratio
17.2 :1
Steering Mechanism
Recirculating Ball
Power Steering
Tilt
Optional
Seats
Front Seats › Adjustments, Driver
Seat Depth
Manual
Backrest Angle
Manual
Front Seats
Number of Driver Seat Adjustments, Manual
4
Number of Passenger Seat Adjustments, Manual
4
Armrest
Driver
Passenger
Front Seats › Adjustments, Passenger
Seat Depth
Manual
Backrest Angle
Manual
Design
Transmission Knob Material
Plastic
Transmission Knob Material
Brown
Optional
Features
Comfort Features
Cruise Control
Optional
Parking Heater
Optional
Parking Heater
Engine Heater
Optional
Accessories
Tool Kit and Jack
Yes
Fire Extinguisher
Optional
Warning Triangle
Optional
First Aid Kit
Optional
Safety & Security
Airbags
Other Airbags
Pedestrian Airbag
No
Middle Airbag
No
Door-mounted Airbags
No
Seat Belt Airbag
No
Seat Cushion
No
Feature
Driver
Passenger
Rear
Frontal Airbag
Driver
No
Passenger
No
Rear
No
Side Chest Airbag
Driver
No
Passenger
No
Rear
No
Side Head Airbag
Driver
No
Passenger
No
Rear
No
Side Pelvis Airbag
Driver
No
Passenger
No
Rear
No
Knee Airbag
Driver
No
Passenger
No
Rear
No
Curtain Airbag
Driver
No
Passenger
No
Rear
No
Center Airbag
Driver
No
Passenger
No
Rear
No
Airbag cut-off Switch
Driver
No
Passenger
No
Rear
No
Seat Belt
Type of Belt
Two-Point-Belt (Lap Belt)
Front Seats
Outer Rear Seats
Brake Systems
Power Brakes
Yes
Other Features
Anti-theft Alarm
Optional
Central Locking
Optional
Child Protection
Isofix
Passenger: No
Rear: No
Other
Identification
VIN Location
Pillar
B-Pillar, Left
Car Classification
American Classification
Passenger Van
British Classification
Minibus
Australian Classification
People Mover
European Segment
M-Segment
Car.info Classification
Passenger Van
GMC
284 vehicles
G-Series
Model
13 variants
€67,000
MSRP · EUR
8.9
Body
LCV
Variant
G-Series G2500
1971–1995
G-Series G2500 LCV Generations
3 of 5
Image coming soon
3rd Generation 2nd Facelift
1978–1984
Year
1978
Powertrain
6.6 V8 Hydra-Matic
Horsepower
177 hp
Drivetrain
RWD
Fuel
Transmission
Automatic (Electrohydraulic), 3-speed
Gasoline
LCV
RWD
Gasoline
