Cylinder Head Bolt Torque and Sequence
Cylinder Head Bolt Tightening Sequence:
Coat threads of the cylinder head bolts with sealing compound (GM part number 1052080 or equivalent) and install finger-tight.
Tighten bolts in three steps using the sequence shown in image until the proper torque is reached:
Step 1. 30 n.m (25 lbs. ft.)
Step 2. 60 n.m (45 lbs. ft.)
Step 3. 92 n.m (65 lbs. ft.)