1977 MG MGB Specifications

These are standard specifications for the 1977 MG MGB, not necessarily specifications for the vehicle(s) in the photo(s).
Engine Location : Front
Drive Type : Rear Wheel
Body / Chassis : Steel unibody
Production Years for Series : 1972 - 1980
Price : $4,355
Weight : 2285 lbs | 1036.459 kg
Inline 4
Displacement : 1798 cc | 109.7 cu in. | 1.8 L.
Power : 63 BHP (46 KW) @ 5500 RPM
Torque :86 Ft-Lbs (117 NM) @ 2500 RPM
Bore : 3.2 in | 80 mm.
Stroke : 3.5 in | 89 mm.
Compression : 8.0:1
Main Bearings : 5
Construction : Cast-iron block and head
1 Zenith 175CD5T carburetor
V 8
Displacement : 3528 cc | 215.3 cu in. | 3.5 L.
Power : 137 BHP (100.832 KW) @ 5000 RPM
Torque :193 Ft-Lbs (262 NM) @ 2900 RPM
Bore : 3.5 in | 89 mm.
Stroke : 2.8 in | 71 mm.
Compression : 8.25:1
Cylinder Block : Aluminum
2 SU Horizontal carburetors
Transmission:
4 Manual Floor lever, all-synchro

1st Gear : 3.3:1
2nd Gear : 2.21:1
3rd Gear : 1.40:1
4th Gear : 1.00:1
Total MG Production for 1977 : 34,794
1977 MG MGB
Component

ELECTRICAL SYSTEM:WIRING

Manufacturer

JAGUAR CARS

NHTSA Campaign ID78V164000
SummaryTHE OVERDRIVE WIRING HARNESS COULD CHAFE AND CAUSE AN ELECTRICAL SHORT CIRCUIT.
RemedyTHE DEALER WILL INSTALL A PROTECTIVE SLEEVE TO THE OVERDRIVE WIRING HARNESS AT THE BASE OF THE GEAR LEVER TO PRECLUDE CHAFING.
NotesVEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: ELECTRICAL; WIRING HARNESS.CONSEQUENCES OF DEFECT: A SHORT CIRCUIT COULD LEAD TO A VEHICLE FIRE ANDPASSENGER INJURY.

Component

SEAT BELTS:FRONT

Manufacturer

JAGUAR CARS

NHTSA Campaign ID85V059000
SummaryWIDESPREAD LACK OF UNDERSTANDING ABOUT THE OPERATION OF WEBBING SENSITIVE AND DUAL SENSITIVE SEAT BELTS HAS LEAD TO NON-USE OF BELTS BY A NUMBER OF OWNERS. SOME BELTS RETRACTORS MAY JAM, BIND OR LOCK. THIS MAY DISCOURAGE THE USE OF THE SAFETY BELTS. CONSEQUENCE OF DEFECT: NON-USE OF SEAT BELTS SUBJECTS OCCUPANTS TO RISK OF INJURY IN EVENT OF AN ACCIDENT OR SUDDEN BRAKING.
RemedyINSTRUCTINS ON PROPER BELT USAGE AND SIMPLE CHECKS WILL BE SENT TO OWNERS AND WILL REPLACE ANY MALFUNCTIONING RETRACTOR.
NotesVEHICLE DESCRIPTION:TWO DOOR ROADSTERS AND COUPES PASSENGER CARS.SYSTEM: SEAT BELTS.

Component

FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM

Manufacturer

JAGUAR CARS

Mfr Report Date19750601
NHTSA Campaign ID78V089000
SummaryTHE RETAINING SCREWS ON THE FUEL BOWL HAVE THE POTENTIAL TO LOOSEN, ALLOWING SEEPAGE OF GASOLINE FROM THE CARBURETOR.
RemedyTHE DEALER WILL CHECK THE EXHAUST MANIFOLD/CATALYST SYSTEM AND CARBURETOR AND MAKE ANY NECESSARY REPAIRS WITHOUT CHARGE TO OWNER.
NotesVEHICLE DESCRIPTION: PASSENGER VEHICLES.SYSTEM: FUEL; CARBURETOR.CONSEQUENCES OF DEFECT: THIS WOULD CREATE A POTENTIAL RISK OF FIRE AND, IF THEVEHICLE IS IN MOTION, AN ACCIDENT.

Information provided by NHTSA
Data updated June 2024
1977 Averages
Avg. Household Income : $15,000
Avg. Home : $49,300
Avg. Gallon of Gas : $0.65

Popular frequently asked questions include:

What are the dimension and mechanical specifications of the 1977 MG MGB?
How many 1977 MG MGB were produced?
How powerful was the 1977 MG MGB? Was the 1977 MG MGB popular? Was the 1977 MG MGB expensive? What was the fuel economy of the 1977 MG MGB?

Q: What is the wheelbase size of the 1977 MG MGB? A: The 1977 MG MGB has a wheelbase size of 91.10 inches.

Q: What is the length of the 1977 MG MGB? A: The 1977 MG MGB has a length of 158.30 inches.

Q: What is the width of the 1977 MG MGB? A: The 1977 MG MGB has a width of 59.90 inches.

Q: How much did the 1977 MG MGB cost when new?A: The 1977 MG MGB had a base price of approximately $4,355 (USD).

Q: What is the bodystyle of the 1977 MG MGB? A: The 1977 MG MGB was a Roadster.

Q: How many vehicles did MG produce in 1977? A: MG produced 34,794 automobiles in 1977.

Q: What engines did the 1977 MG MGB have? A: The 1977 MG MGB had the following engine options: Inline 4 (1798 cc | 109.7 cu in. | 1.8 L.) with 63 BHP (46 KW) @ 5500 RPM and 86 Ft-Lbs (117 NM) @ 2500 RPM
  • V 8 (3528 cc | 215.3 cu in. | 3.5 L.) with 137 BHP (100.832 KW) @ 5000 RPM and 193 Ft-Lbs (262 NM) @ 2900 RPM
  • Q: What transmission did the 1977 MG MGB have? A: The 1977 MG MGB had a 4 speed Manual Floor lever, all-synchro gearbox.

    Vehicle information, history, and specifications from concept to production.