Cylinder Head Assembly: Specifications

Cylinder Head

Install a new gasket, the RH cylinder head and 8 new bolts. Tighten in the sequence shown in 5 stages:
Stage 1: Tighten to 20 Nm (177 lb-in).
Stage 2: Tighten to 35 Nm (26 lb-ft).
Stage 3: Tighten 90 degrees.
Stage 4: Tighten 90 degrees.
Stage 5: Tighten 90 degrees.





Install a new gasket, the LH cylinder head and 8 new bolts. Tighten in the sequence shown in 5 stages:
Stage 1: Tighten to 20 Nm (177 lb-in).
Stage 2: Tighten to 35 Nm (26 lb-ft).
Stage 3: Tighten 90 degrees.
Stage 4: Tighten 90 degrees.
Stage 5: Tighten 90 degrees.





Bolt Re-usability

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

Surface Variation - Head-to-block, Head-to-manifolds And Surface Variation - Warpage


















a Tighten to 20 Nm (177 lb-in) plus an additional 180 degrees.

Intake Manifold

Using new gaskets, install the lower intake manifold and the 10 bolts.
Tighten in the sequence shown to 10 Nm (89 lb-in).





Using new gaskets, install the upper intake manifold and the 6 bolts.
Tighten in the sequence shown to 10 Nm (89 lb-in).





Camshaft Bearing Cap

Install the 8 camshaft caps and the 16 bolts.
Tighten in the sequence shown to 10 Nm (89 lb-in).





Camshaft Sprocket Bolt

Install 2 new bolts and the original washer. Tighten in 4 stages.
Stage 1: Tighten to 40 Nm (30 lb-ft).
Stage 2: Loosen one full turn.
Stage 3: Tighten to 10 Nm (89 lb-in).
Stage 4: Tighten 90 degrees.





Exhaust Manifold

Using a new gasket, install the LH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown:
Stage 1: Tighten to 20 Nm (177 lb-in).
Stage 2: Tighten to 25 Nm (18 lb-ft).





Using a new gasket, install the RH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown:
Stage 1: Tighten to 20 Nm (177 lb-in).
Stage 2: Tighten to 25 Nm (18 lb-ft).