The six-cylinder engine was enlarged more than 16% to 3,990 cc with larger twin Stromberg carburettors as standard and power output increased to 165 bhp (167 hp, 123 kW), or [DIN 145 bhp (147 hp, 108 kW). Perhaps more important was an increase of nearly 30% in torque at 50 m.p.h. Big end and main bearings were now made of lead indium and a vibration damper fitted to the nose of the crankshaft. The compression ratio was raised to 7.5 to 1. The car could now lap the Lindley high speed track at 104 m.p.h.