K 2500 Truck 4WD V8-454 7.4L (1990)
Valve Clearance: Specifications
Valve Clearance Specifications
ROCKER ARM AND PUSHROD ADJUSTMENT
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Adjust Rocker Arm to Zero lash plus 3/4 additional turn.
GMC Workshop Service and Repair Manuals
Valve Clearance Specifications|Page 3152 >
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