sentences:  The engine was a further development of the 1271 cc 6-cylinder KD series overhead camshaft engine used in the K-type and originally used in the 1930 Wolseley Hornet.Modifications were made to the cylinder block and head and fitted with twin SU carburettors it produced at 5500 rpm, a near 25% improvement.Drive was to the rear wheels through a four-speed non-synchromesh gearbox.