Relier Pairs Parts of an EngineVersion en ligne To complete this worksheet, match the engine parts with what they do. par Alison Jack 1 Surrounds engine block 2 Raises and lowers the valves 3 Rotary power output 4 Pistons reciprocate in these 5 The carburetor sits on top of this. 6 Covers the pistons 7 The intake manifold is bolted to this. 8 These vaporize gasoline 9 Lets gas vapor in and exhaust out 10 Ignites the gasoline 11 Connects pistons with crank shaft Intake manifild Piston rods Cylinders Water jacket Engine block Valves Cylinder heads Spark plugs carburetor or fuel injector Cam shaft Crank shaft