K 2500 Truck 4WD V6-262 4.3L VIN Z TBI (1995)
Rocker Arm Assembly: Adjustments
VALVE ADJUSTMENT
The 4.3L engine has screw-in rocker arm studs with positive stop shoulders. No valve adjustment is necessary. When the valve train requires service,
tighten the rocker arm nuts to 27 Nm (20 ft. lb.).
