Valve Train - RPO L84/L87

Motion is transmitted from the camshaft through the hydraulic roller valve lifters and tubular pushrods to the roller type rocker arms. The nylon valve lifter guides position and retain the valve lifters. The valve rocker arms are mounted on individual pedestals or pivot supports that are incorporated into the cylinder heads. Each rocker arm is retained by a bolt. Valve lash is net build. Each of the 8 cylinders can be deactivated individually via oil control solenoid valves mounted in the engine block valley. Cylinder Deactivation (Active Fuel Management) System Description