What is another name for an overhead valve arrangement?

An overhead valve arrangement is commonly referred to as "valve in head." This design positions the valves within the cylinder head itself, as opposed to other configurations where the valves might be situated in the engine block. Using a "valve in head" design typically allows for more efficient engine operation, as it improves airflow into and out of the combustion chamber. This can lead to better power output and improved fuel efficiency.

In contrast, the other terms such as "flat head," "T-head," and "L-head" describe different types of valve arrangements. For instance, a flathead engine has the valves located in the engine block, requiring a different approach to valve train design. T-head and L-head configurations also place valves in the block for specific benefits and characteristics, but they differ in their arrangement and operation compared to overhead valve designs. Understanding these distinctions is essential for recognizing how the type of valve arrangement affects engine performance and design.