Patent ID: 8616173

Claim:
An engine assembly comprising: an engine block defining a first cylinder bore and a second cylinder bore; a first piston located in the first cylinder bore; a second piston located in the second cylinder bore; and a cylinder head coupled to the engine block, cooperating with the first cylinder bore and the first piston to define a first combustion chamber and cooperating with the second cylinder bore and the second piston to define a second combustion chamber, the cylinder head defining: a bottom surface connected to the engine block, an upper surface opposite the bottom surface and a side surface extending between the bottom surface and the upper surface; a pair of first intake ports in communication with the first combustion chamber and including a pair of first inlets extending through the upper surface of the cylinder head that provide an entire air flow to the first combustion chamber; and a pair of second intake ports in communication with the second combustion chamber and including a pair of second inlets extending through the side surface of the cylinder head that provide an entire air flow to the second combustion chamber.