59. Valve Lifter Installation

Valve Litter Installation

Notice: If the valve lifters and anti-rotation brackets are not installed properly, the valve lifters, the anti-rotation brackets, and the engine could be damaged.

Important: When installing new valve lifters, coat the lifters with engine assembly prelube (GM P/N 1052367) or equivalent.





1. Install the valve lifters in the lifter bores.
^ Align the flat sides (top) of the lifters with the flat sides of the lifter guides.
^ When properly aligned, the flat side of each lifter is aligned parallel to the lifter guide.
^ The roller at the bottom of each lifter is aligned parallel to the camshaft lobe.





2. Install the lifter guides on the valve lifters.

Notice: Refer to Fastener Notice in Service Precautions.





3. Install the screws that retain the lifter guides.
Tighten the lifter guide bolts to 11 Nm (97 inch lbs.).