The MGB Roadster and GT profile

The MGB is one of the most coveted entry-level classic cars out there. But which series, engine or condition you should go for can be a minefield. This guide might prove helpful to new MGB buyers.

As the successor to the popular MGA, the MGB had big shoes to fill. In 1962, the Roadster was revealed with 95bhp, a folding roof and the promise of unfiltered driving pleasure. There wasn’t much in the way of innovation as the chassis and an 1800 cast iron engine from BMC were anything but modern, but the MGB was affordable, easy to look after and extremely good-looking.

The Roadster was followed by a version with a straight-six cylinder engine and a different front suspension – named the MGC – then the coupé MGB GT (from 1965) and even a series of Rover V8-engined GTs. Just 2591 V8 GTs were produced. The factory never made V8 Roadsters so if you find a V8 convertible it will be a conversion, but that won’t stop it from being a riot to drive. 

Three Generations of MGB

This sports car became a worldwide success through three generations. Original Mk1 cars from 1962 to 1967 are considered the most beautiful today – partly due to the simplistic interior. Very early Roadsters have so-called “pull-handle” door handles, sought-after by enthusiasts. The Mk2 was built from the end of 1967 and can be recognised by the revised radiator grille as well as an upgraded brake servo. The Mk3 launched in 1974 was subjected to much more significant changes such as US-compliant plastic bumpers, a raised ride height and decreased performance for US cars.

The ‘right’ MGB comes down to a question of taste. Open, closed, left or right hand drive, spoked rims, steel or aluminium wheels, four, six or even eight cylinders? The large selection of models makes it a personal choice.

Under the MGB bonnet

The majority of all MGBs were delivered with four-cylinder engines. It’s considered to be frugal and durable, especially the five–bearing crankshaft version introduced later in production. Early engines are quite rare today and tend to be a little more fragile. With regular oil changes and well-adjusted twin carburettors, you can enjoy these 1800s mile after mile. The V8 models sometimes struggle with a badly-worn camshaft, but they do offer impressive performance as consolation.

The gearboxes (available from 1963 with overdrive for third and fourth gear) are typical products of the 1960s – functional and simple. Every B should still be cable of clean shifts without any unwarranted noises. Test the car’s overdrive function as repairs will require a specialist. First gear in Mk1 cars is unsynchronised, and so requires more sensitivity from the driver. People often make use of a five-speed gearbox (Ford T9 or Rover LT77), although such swaps won’t interest those seeking originality.

What to look for on an MGB

Most MGBs today will have been restored in some way, and so evidence of completed work is crucial. Keep an eye out for rust in the sills, wheelarches, near the heater, the floor panels and behind the headlights. MGBs can suffer badly with rot, so caution is advised.

Spare parts, panels and even complete bodyshells are available at very reasonable prices, however, fit and quality are sometimes questionable. If you find a good example, pay attention to the welded seams, upper sections of the wings, and sunroofs on the GT. It is easy for dishonest sellers to hide rust, so making a magnet is the only way to be sure of a solid car.

Old legends about the Lucas “Prince of Darkness” electrics are rarely true for an MGB that’s driven regularly. Long periods of inactivity or poor maintenance aren’t good news, however, you can be proactive with restoration. The wiring harness of the MGB is relatively easy to understand. Age-related ailments such as worn suspension can be cured using new polyurethane bushings. Clunking noises when setting off indicates a defective differential or ageing wheel hubs.

Tuning

It’s in the DNA of the MG brand to get the most out of the cars. Many specialists have developed tuning parts over decades that make the B faster, more comfortable and more durable. Larger rims, telescopic dampers and stainless steel exhaust systems are popular modifications. Most MG fans see these improvements as a positive and a sign of a caring owner.

Conclusion

Anyone who has felt the direct steering, enjoyed its roaring engine and a spirited drive tends to fall in love. The MGB is strongly recommended for beginners due to the huge amount of knowledge and specialists available. This car proves that you don’t need to be a mechanical engineer or have 300bhp to love owning a classic.