Cylinder Head Assembly
Cylinder Head Surface VariationA cylinder head block deck with warpage in excess of 0.10 mm (0.004 in) within a 152.4 mm (6.0 in) area must be repaired or replaced.
A cylinder head exhaust manifold deck with warpage in excess of 0.05 mm (0.002 in) within a 152.4 mm (6.0 in) area must be repaired or replaced.
A cylinder head intake manifold deck with warpage in excess of 0.10 mm (0.004 in) within a 152.4 mm (6.0 in) area must be repaired or replaced.
Cylinder Head Bolt Re-Usability
Install the NEW cylinder head bolts
Cylinder Head Bolt - Preferred Method
All Bolts First Pass in Sequence 30 N.m (22 lb ft)
Long Bolts Final Pass in Sequence 75 degrees
Medium Bolts Final Pass in Sequence 65 degrees
Short Bolts Final Pass in Sequence 55 degrees
Exhaust Manifold Bolt/Stud
First Pass 15 N.m (11 lb ft)
Final Pass 30 N.m (22 lb ft)
Lower Intake Manifold Bolt
First Pass in Sequence 3 N.m (27 lb in)
Second Pass in Sequence 12 N.m (106 lb in)
Final Pass in Sequence 15 N.m (11 lb ft)
Upper Intake Manifold Stud
First Pass 5 N.m (44 lb in)
Final Pass 9 N.m (80 lb in)