What do pistons move on in the car?
The principle of operation of the piston: when the fuel mixture enters the cylinder, it is compressed by the piston head and ignited by a discharge from the ignition system. The resulting gases have a large volume and move the piston down. The piston head has cut grooves, or cavities, for the piston rings.
Now this is a very important part for your engine and there is a good list of manufacturers if you need a replacement. You can find them on the website https://www.epartrade.com/pistons
The bottom of the piston is connected to the crankshaft. This is what is moved by the piston. The top of the piston is a chamber in which gas is ignited to push the piston down. There are 4 cycles in most engines (like car engines.) If you want to know more, including specifics, go to: http://en.wikipedia.
