What is a cylinder head?

A cylinder head is a component of an internal combustion engine that sits on top of the engine block and forms the top of the combustion chamber. It contains the intake and exhaust valves, spark plugs, and fuel injectors, and is responsible for sealing the combustion chamber and allowing air and fuel to enter and exhaust gases to exit. The cylinder head also houses the camshaft(s) and other components necessary for the engine to operate.

A cylinder head is the top part of an internal combustion engine cylinder that forms the combustion chamber. It is usually made of cast iron, aluminium, or steel. The cylinder head contains the valves, spark plugs, and injectors that allow air and fuel to enter the cylinder and exhaust gases to escape. It also contains the coolant passages that help to keep the engine cool.