A less common setup is called OHV (Overhead Valve), or pushrod engines. In this case, the valves are located above the camshaft. This engine type is considered traditional but less efficient than DOHC and SOHC.

OHV stands for Over Head Valve, a term synonymous with pushrod engines where the camshaft resides in the engine block. This configuration is an older yet enduring legacy of internal combustion engine design.

OHV stands for “Over Head Valve.” An OHV engine is a type of engine on which the valves are located above the combustion or ignition chamber. Lawnmowers that utilize this type of engine are designated as “OHV lawnmowers.”