William Elbert Devin Junior was an American businessperson, automotive entrepreneur and racing driver. He is primarily known as the founder of Devin Enterprises, a company that built fiberglass body-kit conversions and complete automobiles.

An overhead camshaft (OHC) engine is a piston engine in which the camshaft is located in the cylinder head above the combustion chamber. This contrasts with earlier overhead valve engines (OHV), where the camshaft is located below the combustion chamber in the engine block.