Cylinder Head Assembly: Specifications
Cylinder Head WarpageCylinder 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 within a 152.4 mm (6.0 in) Area 0.08 mm (0.003 in)
Surface Flatness - Block Deck - 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)
Surface Flatness - Intake Manifold Deck 0.08 mm (0.0031 in)
Cylinder Head Bolts
Install NEW cylinder head bolts
Bolts (1-10) first pass 30 Nm (22 lb ft)
Bolts (1-10) second pass 90 degrees
Bolts (1-10) final pass 70 degrees
Bolts (11-15) 30 Nm (22 lb ft)
Begin with the center bolt (11) and alternate side-to-side, working outward tightening all of the bolts.
Camshaft Sprocket
First Pass - Single Bolt Design 75 Nm (55 lb ft)
Final Pass - Single Bolt Design 50 degrees
3 Bolt Design 30 Nm (22 lb ft)
Intake Manifold
Bolts (1-10) first pass 5 Nm (44 lb in)
Bolts (1-10) final pass 10 Nm (89 lb in)
Exhaust Manifold
First Pass 15 Nm (11 lb ft)
Final Pass 20 Nm (15 lb ft)
Beginning with the center 2 bolts, alternate from side-to-side, and work toward the outside bolts.