Cylinder Head Assembly: Specifications

The cylinder head must not have depressions deeper than 0.0254 mm (0.001 inch) across a 38.1 mm (1.5 inch) square area, or scratches more than 0.0254 mm (0.001 inch).

Cylinder head flatness must be within 0.0254 mm (0.001 inch) across a 38.1 mm (1.5 inch) square area.

The cylinder head bolts must be discarded and new bolts installed. They are tighten-to-yield designed and cannot be reused.





Cylinder head bolts
First pass 40 Nm (30 ft. lbs.)
Second pass tighten 90 degrees
Third pass Loosen minimum one full turn (360°)
Fourth pass 40 Nm (30 ft. lbs.)
Fifth pass tighten 90 degrees
Final pass tighten 90 degrees





Intake manifold bolts 25 Nm (18 ft. lbs.)
Throttle body bolts 10 Nm (89 inch lbs.)





Camshaft bearing cap bolts 10 Nm (89 inch lbs.)

Camshaft sprocket bolts

Note: Fastener replacement may be required. Refer to Component Service and Repair for further information.

First pass 40 Nm (30 ft. lbs.)
Final pass tighten 90 degrees








Exhaust manifold nuts 25 Nm (18 ft. lbs.)