In May 1962 Ford announced the 116E engine. This engine first appeared in the Consul Capri in August 1962, and then in the Cortina Super in January 1963. The 116E had a taller deck height than the earlier Kent engines, and with a bore and stroke of , capacity was . The 116E's crankshaft was carried on five main-bearings. Power output was about at 4600 rpm. As soon as a block could be obtained work began to convert the Lotus cylinder head to the 116E block. Duckworth assembled the first two production-specification engines, one of which powered a Lotus 23 on its racing debut at the Nürburgring. After building a limited number of 1.5 L Twin Cams, the bore was increased to , raising the capacity to 1.55 L.