out to the market on Jaguar E-Type in 1971, on Jaguar XJ12 in 1972, and, together with the later 6.0 L version, remained in production until 1997. CFA and CFF After the designing was finished on the 5.3 L V12 and the Jaguar XJ, Jaguar wanted a modern engine for a smaller version of XJ. Although Jaguar had gained access to the 2.5 Litre iron block Daimler V8 with the take over of Daimler in 1960, it was a pushrod engine designed in the 1950s, and was not particularly small or light as it was based on, and had many common components with, the 4.5 Litre version. In response, Coventry Climax designed an aluminium crossflow chain-driven SOHC cylinder head somewhat similar to the 5.3L V12 head, on FWMV Mk.4 block with a stroked crank and wet sump. Tecalemit-Jackson fuel injection was used for the development of this 2,496 cc CFA V8 that weighed 300 lb, with a bore and stroke of 80.77 mm and 60.96 mm and the engine was installed on Leonard Pelham Lee's personal Triumph 2000 Estate. The testing was promising, producing more than 200 bhp at 7,000 rpm in flexible sports-car tune and a 1,812 cc CFF version was prototyped; however, this 1.8 – 2.5 Litre baby XJ project was killed along with the V8 engines when British Motor Holdings merged with Leyland Motor Corporation in 1968 for the strategy to eliminate internal competition against what came out to be the Rover SD1. F1 engines The F1 engines were as follows (bore and stroke figures are unified in inches on Metric designs for comparison): 1954 FPE 2492cc V-8 2.95 x 2.78125" @7900rpm Godiva 1956 FPF 1475cc 4 cyl 3.20 x 2.80" @7300rpm for F2, ran in GP races 1957 FPF 1964cc 4 cyl 3.40 x 3.30" @6500rpm 1958 FPF 2207cc 4 cyl 3.50 x 3.50" power figures unknown 1958 FPF 2467cc 4 cyl 3.70 x 3.50" @6500rpm 1960 FPF 2497cc 4 cyl 3.70 x 3.54" @6750rpm 1961 FPF 2751cc 4 cyl 3.78 x 3.74" Indianapolis and Formula Libre 1961 FPF Mk.II 1499.8cc 4 cyl 3.23 x 2.80" @7500rpm 1961 FWMV Mk.I 1496cc V-8 2.48 x 2.36" @8500rpm Crossplane crank 1962 FWMV Mk.II 1496cc V-8 2.48 x 2.36" @8500rpm 1.35" Intake, Crossplane 1963 FWMV Mk.III 1496cc V-8 2.675 x 2.03" @9500rpm Fuel injection, Flatplane 1964 FWMV Mk.4 1499cc V-8 2.85 x 1.79" @9750rpm 1.37" Exhaust, Flatplane 1964 FWMV