MARCH-TRIUMPH F3 ENGINE Although British Leyland no longer ran‘ works’ rallying or race teams during the late 1970s, many of the companies which formed the group still maintained an involvement, with one example being the sponsorship of the 1980 World Championship winning Williams F1 Grand Prix team by Leyland Vehicles.
Unipart, at that time a British Leyland parts subsidiary, also took an interest in motorsport with sponsorship of this March Formula 3 car. Powered by a highly developed version of the four-cylinder 2.0-litre 16-valve engine from the Triumph Dolomite, developing 165 hp, it competed in the British Formula 3 series from 1976 until 1979.
Notable drivers of the Unipart March-Triumph 783 F3 car were Tiff Needell, Tony Dron and Brett Riley, as well as Nigel Mansell who went on to become the F1 World Champion.
PROTOTYPE JAGUAR V12 QUAD-CAM This is a pair of twin-cam cylinder heads from a prototype V12 engine that was developed for use in the Jaguar XJR programme. The production V12 engine has only one camshaft per cylinder bank but the test and race engines had two camshafts per bank – the so-called‘ quad-cam’ engine.
These aluminium cylinder heads came from an XJR-5 engine that was tested to destruction, until the crankshaft broke. It is seen here with inlet manifolds and trumpets fitted, as was used �or the �uad-cam engine in the X�220 concept car �the production X�220 was powered b� a �WR twin-turbo �6�.
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