This is the kit that enables young mechanics and auto enthusiasts to build and display a working model of an eight-cylinder internal combustion gasoline engine. The kit has over 250 parts that fit seamlessly together using the included tools. The definitive auto repair reference since 1960, a Haynes Manual guides construction with complete, step-by-step instructions and vivid, clearly printed diagrams. A transparent cylinder block enables young mechanics to see how the connected parts work in concert to power a vehicle. Lubricated with small applications of vegetable oil, the engine operates using a small battery-powered electric motor (requires three AA batteries) which makes an ignition sound while firing the spark plugs; the valve sequence cycles, the pistons move, the shaft rotates, and the timing belt moves with the radiator fan belt. Each cylinder illuminates during the detonation cycle. Ages 13 and up. 8 1/5" H x 11 1/4" W x 8 1/2" D.