Background
The MGB is a two-door sports car built over a span of 18 years from 1962 until 1980 by the British Motor Corporation, later to be the Austin Morris division of British Leyland. The car featured a four cylinder engine with a 1.8 litre displacement and was available as a convertible and a GT version. Later in production (1965), a six-cylinder version was available, with an eight-cylinder engine becoming available in 1973. Even though the V8 was considered by far the quickest of them all, the modest four-cylinder was the most successful iteration. A total of 523.836 cars was built until production ceased.
The MGB was based on the MGA design, but used a unitary structure instead of the traditional body-on-frame construction of the preceding models. However, components like brakes and suspension were taken over from the MGA. The four-cylinder engine produced around 95bhp, which guaranteed decent performance, without making it a particularly fast vehicle. However, the chassis and body construction were quite light, compensating the small engine. The engine was essentially a bored-up version of the MGA motor, fitted with two 38mm SU carburettors for the European spec cars. Little changes were made to the power unit throughout production, with the most notable being the addition of two crankshaft bearings to increase maximum rpm. US specification cars had a detuned engine with a single carburettor (on top of the large rubber bumpers starting from 1974). All cars were fitted with a four-speed gearbox and the typical British overdrive was an optional extra but was fitted to only 20% of the cars.
Very modern for the time was the fitment of disc brakes at the front, though the brake pedal did remain very hard on non-servo assisted cars. All in all, the MGB was a very simple car, and this was also reflected in the electrical system: a few toggle switches on the dashboard to control the lights and ventilation fan – that was it. What more do you need anyway? Power came from two 6-volt batteries in series, though most owners have replaced it with one single 12-volt battery.
The MGB, with its attractive price tag, was a very popular car and a huge success for MG. Its simple mechanics, made it an easy car to work on for weekend mechanics, adding to the car’s appeal. Nowadays, this simplicity, paired to the timeless design, make the MGB an affordable classic. The cars are versatile, usable and reliable and parts are readily available and not expensive!







