Patent ID: 8201536

Claim:
An engine assembly comprising: an engine block including a first bank defining a first set of cylinders and a second bank defining a second set of cylinders; a first cylinder head fixed to the first bank and including a first set of intake ports; a second cylinder head fixed to the second bank and including a second set of intake ports; a first cylinder head cover defining a first intake manifold fixed to the first cylinder head and including a first air inlet, a first air distribution member defining a cavity in communication with the first air inlet, and a first set of intake manifold ports extending from the first air distribution member and providing communication between the first air distribution member and the first set of intake ports, and a first acoustic tuning mechanism extending from and in communication with the first air distribution member that reduces a first air pressure pulsation within the first air distribution member; and a second cylinder head cover defining a second intake manifold fixed to the second cylinder head and including a second air inlet, a second air distribution member defining a cavity in communication with the second air inlet, and a second set of intake manifold ports extending from the second air distribution member and providing communication between the second air distribution member and the second set of intake ports, and a second acoustic tuning mechanism extending from and in communication with the second air distribution member that reduces a second air pressure pulsation within the second air distribution member.