Cylinder Head Assembly: Specifications

Cylinder Head M11 Bolts
First Pass in Sequence 30 Nm (22 lb ft)
Second Pass in Sequence 90 degrees
Final Pass in Sequence 70 degrees

Cylinder Head M8 Bolts - in Sequence 30 Nm (22 lb ft)

CYLINDER HEAD BOLT RE-USABILITY

Note: Do not use the cylinder head bolts again. Install NEW cylinder head bolts during assembly. Do not use any type of sealant on the cylinder head gasket, unless specified.

SURFACE VARIATION - HEAD-TO-BLOCK, HEAD-TO-MANIFOLDS

Cylinder Head Deck Surface Flatness
Measured Within a 152.4 mm (6.0 in) Area 0.11 mm (0.004 in)
Measuring the Overall Length of the Block Deck 0.22 mm (0.008 in)

Surface Flatness - Block Deck
Measured Within a 152.4 mm (6.0 in) Area 0.08 mm (0.003 in)
Measuring the Overall Length of the Cylinder Head 0.1 mm (0.004 in

Surface Flatness
Exhaust Manifold Deck 0.13 mm (0.005 in)
Intake Manifold Deck 0.08 mm (0.0031 in)

Intake Manifold

Surface Flatness
Measured at Gasket Sealing Surfaces and Measured Within a 200 mm (7.87 in) Area that Includes Two Runner Port Openings 0.3 mm (0.118 in)

INTAKE MANIFOLD

Intake Manifold Bolts
First Pass in Sequence 5 Nm (44 lb in)
Final Pass in Sequence 10 Nm (89 lb in)

EXHAUST MANIFOLD

Exhaust Manifold Bolts
First Pass 15 Nm (11 lb ft)
Final Pass 20 Nm (15 lb ft)