A pushrod engine is a type of internal combustion engine that uses pushrods to operate the engine's valves. In this design, the camshaft is located in the engine block, and the pushrods transfer motion from the camshaft to the rocker arms, which then open and close the valves. This setup is commonly found in many V8 engines and is known for its simplicity and compact design. Pushrod engines are often praised for their durability and ease of maintenance. They typically have fewer moving parts compared to overhead cam engines, which can lead to increased reliability. This design has been widely used in various applications, including automobiles and motorcycles.