Cylinder Head Assembly: Specifications

CYLINDER HEAD TORQUE AND SEQUENCE









Cylinder Head M8 Bolts - in Sequence 30 Nm (22 lb ft)
Cylinder Head M11 Bolts - First Pass In Sequence 30 Nm (22 lb ft)
Cylinder Head M11 Bolts - Second Pass In Sequence 90 degrees
Cylinder Head M11 Bolts - Final Pass In Sequence 70 degrees

BOLT RE-USABILITY

Note: Do not reuse the cylinder head bolts. 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

Block
Cylinder Head Deck Height
Measuring from the centerline of crankshaft to the Deck Face 234.57-234.82 mm (9.235-9.245 in)

Cylinder Head Deck Surface Flatness
Measured Within A 152.4 M (6.0 In ) Area 0.11 mm (0.004 in)
Measuring The Overall Length Of The Block Deck 0.22 mm (0.008 in)

Cylinder Head
Cylinder Head Height/Thickness
Measured From The Cylinder Head Deck To The Valve Rocker Arm Cover Seal Surface 120.2 mm (4.732 in)

Surface Flatness
Block Deck - Measured with a 152.4 mm (6.0 in) Area 0.08 mm (0.003 in)
Block Deck - Measuring The Overall Lengthy Of The Cylinder Head 0.1 mm (0.004 in)
Exhaust Manifold Deck 0.13 mm (0.005 in)
Intake Manifold Deck 0.08 mm (0.0031 in)

INTAKE MANIFOLD TORQUE AND SEQUENCE









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

CAMSHAFT BEARING CAP TORQUE AND SEQUENCE

Camshaft Retainer Bolts
Hex Head Bolts 25 Nm (18 lb ft)
TORX Head Bolts 15 Nm (11 lb ft)

EXHAUST MANIFOLD TORQUE & SEQUENCE

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

Exhaust Manifold Studs 20 Nm (15 lb ft)