GMC Workshop Service and Repair Manuals

Valve Clearance: Adjustments

4-151 ENGINE
    This engine is equipped with hydraulic valve lifters. No adjustment is required.

Valve Arrangement

Front to Rear

4-119 & 121 ....................................................................................................................................................................................................E-I-I-E-E-I-I-E 
4-151 ................................................................................................................................................................................................................I-E-I-E-E-I-E-I