gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Valve, Intake/Exhaust > < Rocker Arm Assembly|Service and Repair|Page 1347
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Valve Guide: Service and Repair

    The valve guides are an integral part of the cylinder head and are not replaceable. Check valve stem to guide clearance and compare to specifications.
If clearance is excessive, ream valve guides using tool set J-7049 and install oversize valves.

Valve, Intake/Exhaust > < Rocker Arm Assembly|Service and Repair|Page 1347