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Home >> GMC >> 1995 >> Forward Control 4.3 Z, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical 6.5L Turbo Diesel - VIN [F] >> Overhaul >> Cylinder Head >> Valve Guides

Valve Guides

Valve guides are part of cylinder head (not replaceable). If valve stem-to-guide oil clearance is not within specification, ream valve guides using Reamer Set (J-7049) and install oversize valves. See CYLINDER HEAD  table under ENGINE SPECIFICATIONS. Oversize valves are available in .003" (.08 mm) and .015" (.38 mm) oversize.