Abstract: An intake air control system of a V-type internal combustion engine is arranged in a V-shaped space defined between front and rear banks of the engine. The intake air control system includes front and rear throttle bodies having front and rear throttle valves thereon, and a plurality of electrically-operated actuators which drive the throttle valves. The electrically-operated actuators are arranged between the front and rear banks. The arrangement of the electrically-operated actuators prevents overheating thereof, and provides a storing space for disposing auxiliary equipment in a lower portion of the V-shaped space. The front bank includes an opening formed therein which directs wind towards the electrically-operated actuators disposed in the V-shaped space during operation of the vehicle.