Cylinder head
The precision cast light-alloy cylinder head is bolted to the cylinder block. The domed combustion chambers have 4 valves per cylinder and centrally situated spark plugs. This improves the flow of gases in the cylinders and provides more efficient combustion, making the engine more efficient. Openings for the injectors are also situated in the inlet ports to provide an optimum injection pattern.
The design allows a very shallow cylinder head, 129.0 mm, which is space-saving and low-weight.