Cylinder Head Assembly: Specifications

Cylinder Head Bolts








CAUTION: The cylinder head bolts must be discarded and new bolts installed. They are a tighten-to-yield design and cannot be reused.

First pass 40 Nm (30 lb-ft).
Second pass Tighten an additional 90°
Final pass Tighten an additional 90°

Cylinder Head Gasket Surface Flatness
The cylinder heads must not have depressions deeper than 0.0254 mm (0.001 in) across a 38.1 mm (1.5 in) square area, or scratches longer than 0.0254 mm (0.001 in).

Intake Manifold Bolts





First pass 2 Nm (18 lb-in).
Final pass 10 Nm (89 lb-in).

Throttle Body Bolts 10 Nm (89 lb-in).

Camshaft Bearing Cap Bolts 10 Nm (89 lb-in).





Camshaft Phaser Sprocket Bolts
Discard the bolts.

First pass 40 Nm (30 lb-ft).
Final pass Tighten an additional 90°

Exhaust Manifold Studs 12 Nm (9 lb-ft).
Discard the studs.

Exhaust Manifold Nuts 25 Nm (18 lb-ft).
Discard the nuts.