Wikimedia Commons has media related to Continental O-240. Valvetrain: One intake and one exhaust valve per cylinder.
The engine incorporates a full authority digital electronic control (FADEC) system to control the ignition and fuel injection functions."
The O-240 was produced under license in the United Kingdom by Rolls-Royce Limited and was used to power the Reims Aviation-built Cessna 150s constructed in France under license. It may be mounted in tractor or pusher configuration. The O-240 delivers 30% more power than the O-200 while it weighs only 12% more. It is generally similar in overall dimensions to the Continental O-200, but with a higher 8.5:1 compression ratio, designed to run on 100/130 avgas. The 130 hp (97 kW) O-240 was a new engine design derived from the six-cylinder Continental O-360 and introduced in 1971.