Cylinder Head Assembly: Specifications

Cylinder Head Bolts
Please refer to Cylinder Head Removal and Replacement for bolt tightening specifications and procedures. Service and Repair

Cylinder Head Warpage Inspection





Measure the warping of the cylinder head surface that mates with cylinder block using a straight edge (A) and thickness gauge (B).
If the warping exceeds the limit, correct the surface by grinding it with a surface grinder.
Warping limit 0.035 mm (0.0014 in)
Grinding limit 0.3 mm (0.012 in)
Standard height of cylinder head 127.5 mm (5.02 in)

Intake Manifold Bolts 8.25 N.m (0.8 kgf-m, 6.1 ft-lb)

Camshaft Bearing Cap Bolts
Gradually tighten the camshaft cap in at least two steps, in alphabetical order shown in the figure, and then tighten to the specified torque.





Cam Sprocket Bolts
First pass 30 N.m (3.1 kgf-m, 22.1 ft-lb)
Final pass Tighten further by 45°

Exhaust Manifold to Cylinder Head Nuts 40 N.m (4.1 kgf-m, 29.5 ft-lb)