The piston is one of the most vital component of an automobile engine. The energy of an automobile’s engine is stored in the piston. Pistons are located in the cylinder block of an engine. The number of cylinders of an engine may vary. An intake valve injects a mixture of air and fuel inside the cylinder, where pressure is created as the piston returns to the top of cylinder after its completion of the previous cycle. When the pressure reaches the maximum level, the spark plug at the top of the cylinders ignites the gas and creates an explosion, sending the piston down very quickly. The energy created travels through the connecting rod which is situated at the bottom of piston. The linear motion is converted into rotational motion through the crankshaft, which is connected to the transmission and therefore allows the movement of wheels. Pistons can be of various sizes and materials, depending upon the cylinder bore of the motor. Proper piston size and material is extremel...