An engine assembly may include an engine block, a cylinder head, a fuel injector, and a fuel rail. The engine block may define a cylinder bore. The cylinder head may be coupled to the engine block and may define an intake port, an exhaust port, and a centrally located fuel injector opening between the intake port and the exhaust port. The fuel injector opening may be in direct communication with the cylinder bore. The fuel injector may be located within the fuel injector opening. The fuel rail may overlay the fuel injector opening and may be in communication with a fuel supply and the fuel injector.