78. Valve Rocker Arm and Push Rod Installation

Valve Rocker Arm and Push Rod Installation

^ Tools Required
- J 36660-A Torque Angle Meter

Important: All gasket mating surfaces must be free of oil and foreign material. Use GM P/N 12346139 (Canadian P/N 10953463) or equivalent to clean surfaces.

Important: Do Not apply RTV sealer to the engine block before/prior to the installation of the manifold gaskets. RTV sealer is not to be placed under the lower intake manifold gaskets.





1. Install the lower intake manifold gaskets.





2. Coat the ends of the push rods using prelude GM P/N 1052367, (Canadian P/N 992869) or the equivalent.

Important: The intake valve push rods measure 146.0 mm (5.75 inch) in length.

3. Install the push rods in their original location. The exhaust valve push rods measure 152.5 mm (6.0 inch) in length.





4. Coat the rocker arm friction surfaces using prelube GM P/N 1052367 (Canadian P/N 992869) or the equivalent.

Important: Shims may be required under the valve rocker arm pedestals if reconditioning has been performed on the cylinder head or its components.

5. Install the valve rocker arms in their original positions.

Notice: Refer to Fastener Notice in Service Precautions.

6. Install the valve rocker arm bolts.
^ Use the a/ 36660-A to tighten the valve rocker arm bolts to 19 Nm (14 ft. lbs.) plus 30°.