The Engine Rebuilder April 2020 | Page 56

1958 MGA TWIN-CAM While the MGA was introduced in September 1955, the MGA twin-cam which followed three years later was superficiall� similar but had a speciall� de�eloped �ersion o� the B-series engine, a �our-c�linder unit displacing 1588 cc, with double overhead camshafts, developing 108 hp and capable of achieving a top speed of 113 mph. A limited production model, only 2,111 examples were made before it was discontinued in 1960.
This specially sectioned left-hand drive display model appeared at the British Motor Show at Earl’ s Court in 1958 and was possibly also shown at the Motor Show in New York in 1959. In 2013 / 2013 the Trust’ s volunteer team stripped, restored and repainted the car over a period of eight months, retaining much of the original colour scheme that it had acquired during its lifetime.
1934 MG PA MIDGET Introduced in March 1934 a total of 2000 MG PAs were manufactured, with either two- or four-seat open bod�work configuration, up until �ctober 1935, when it was replaced by the PB-type with a larger capacity engine.
�he �A used a modified �ersion o� the engine that had previously been used in the 1928 Morris Minor, a four-cylinder 847 cc unit with a single overhead camshaft that was driven from a vertical a�le passing through the d�namo. With a crossflow cylinder head and twin SU carbs it developed 35 hp and achieved a top speed of 74 mph.
This sectioned display model was originally built in November 1934 as an ordinary production example and was subsequently acquired by the Lancashire Constabulary which used it as a police patrol car. The Constabulary’ s Motor Driving School obtained the car for training purposes and the chassis was specially prepared for instructional demonstrations.
31