Where are the valves located in the overhead valve arrangement?

In an overhead valve (OHV) engine arrangement, the valves are located in the cylinder head. This design places the valves directly above the combustion chamber, allowing for more efficient airflow into and out of the cylinder during the intake and exhaust strokes of the engine cycle.

Positioning the valves in the cylinder head as opposed to the cylinder block enables better control of valve timing and improves overall engine performance. This arrangement makes it easier to design a more compact engine and allows for a direct connection to the combustion process, which can enhance power and efficiency.

While other placements such as in the cylinder block or crankcase exist in different engine designs, they do not contribute to the overhead valve configuration's benefits of improved airflow and engine performance. The camshaft in an OHV system typically resides above the valves, facilitating the operation of the valve mechanism effectively.