gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Valve Seat > < Valve Cover|Specifications
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Valve Guide: Service and Repair

    Valve guides are an integral part of the cylinder head and are not removable. If valve stem clearance becomes excessive, the valve guide should be
reamed to the next oversize and the appropriate oversize valves installed. Valves are available in .0035 inch, .0155 inch and .0305 inch oversizes.

Valve Seat > < Valve Cover|Specifications