A Cylinder Head closes the top of the cylinders and forms the roof of the combustion chamber. It is a complex casting that contains the valves, spark plugs, and other components. the cylinder head must seal the combustion chamber to prevent the escape of gases. Attributes:● Allows coolant to flow through the engine which keeps the engine cool and prevents it from overheating● Manufactured to precise specifications and is durable and reliableApplications:A Cylinder Head forms the shape of the combustion chamber.