System 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°
Final pass tighten 90°





Intake manifold lower bolts
First pass 2 Nm (18 inch lbs.)
Final pass 25 Nm (18 ft. lbs.)





Intake manifold plenum bolts
First pass 2 Nm (18 inch lbs.)
Final pass 10 Nm (89 inch lbs.)





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

Camshaft sprocket bolts
First pass 40 Nm (30 ft. lbs.)
Final pass tighten 90°








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