Valve Lifters
VALVE LIFTERSValve lifters should be kept in order so they may be installed in their original position. If the lifters are removed, they must be installed in their original location. If replacement is necessary, use lifters with a narrow flat ground along the lower 3/4 of lifter. These flats provide additional oil to the cam lobe and lifter surfaces.
Inspect
^ Lifter body for wear and scuffing.
^ Lifter bore for wear.
^ Lifter pushrod seat for wear.
Important
^ Whenever new valve lifters are being installed, coat foot of valve lifters with camshaft and lifter prelube GM p/n 1052365 (or equivalent)