Final answer:
The abbreviation SOHC stands for single overhead cam. It is used to describe the configuration of an engine where the camshaft is located in the cylinder head above the combustion chamber.
Step-by-step explanation:
The abbreviation SOHC stands for single overhead cam. It is used to describe the configuration of a type of engine in which the camshaft is located in the cylinder head above the combustion chamber. This design allows for more efficient operation of the engine's valves.