History of the MGB

The MGB tourer was built from 1962 to 1980, with total production reaching 386,789 units.
In 1965, the MGB GT was added to the range, and by the end of production in 1980, 125,323 A grand total of 512,112 tourers and GTs made the MGB the world’s top selling sports car of its era, the first to reach half a million and the top British sports car of all time.

The total UK market volumes were 49,810 tourer and 64,907 GT - perhaps a reflection on UK weather! Many MGBs were re-imported to Britain from America over the years as demand for ‘classic’ versions grew.

The MGB engine in the early cars had a three main bearing crankshaft and offset con rods it also had a long camfollowerand shorter push rod. This was very similar to the 1500 MGA. The later B series engines had 5 main bearing crankshafts longer push rods and a light weight shorter follower. The connecting rod was also changed to a straight con rod. All MG engines will require unleaded valves seats fitted at the time of being rebuilt as the original cast iron casting is not suitable especially when it has had the seat cut removing years of lead inpregnation removed.

The MGB’s proved there reliability having Successes included outright wins of the 1965 Guards 1000 race (Brands Hatch) and the 1966 Marathon de la Route 84hrs (Nurburgring); there were class wins at Sebring in 1966 and 1967, in the 1966 Targa Florio and in the 1966 1000km Spa race. At the 1964 and 1965 Le Mans 24 hr events, where simply to finish was an achievement, the MGB netted second place in class each time.

A full remanufactured engine for a 1800 5 main MGB engine is £895 plus VAT this would include new parts as follows:


See details of restoration of an old 1600 MGA Engine block.


PISTONS PISTON RINGS REBORE BLOCK
BIG END BEARINGS REGRIND CRANKSHAFT MAIN BEARINGS
REPROFILED CAMSHAFT CAM FOLLOWERS OIL PUMP
GASKET KIT SEAL KIT TIMING CHAIN
CHAIN TENSIONER ROCKER SHAFT ROCKER BUSHES