Cylinder Head Assembly: Specifications

Important:
^ Do not reuse the cylinder head bolts. Install NEW cylinder head bolts during assembly.





Cylinder Head Bolts - In Sequence
^ First Pass 30 Nm (22 ft. lbs.)
^ Second Pass 30 Nm + 120 degrees (22 ft. lbs. + 120 degrees)
^ Final Pass - Long Bolts #1, 2, 3, 6, 7, 8, 9, 10, 11, 14, 16, 17 60 degrees
^ Final Pass - Medium Bolts #15, 18 45 degrees
^ Final Pass - Short Bolts #4, 5, 12, 13 30 degrees
Exhaust Manifold Center Bolt 35 Nm (26 ft. lbs.)
Exhaust Manifold Nut 16 Nm (12 ft. lbs.)
Exhaust Manifold Stud 20 Nm (15 ft. lbs.)
Intake Manifold Bolts - In Sequence
First Pass 5 Nm (44 inch lbs.)
Second Pass 8 Nm (71 inch lbs.)
Third Pass 12 Nm (106 inch lbs.
Intake Manifold Bolt - In Sequence
Final Pass 15 Nm (11 ft. lbs.)
Cylinder Head Deck Surface Flatness - Entire Face 0.1 mm (0.004 inch)
Cylinder Head Deck Surface Flatness - Within 150 mm (6 inch) 0.05 mm (0.002 inch)
Valve Lifter Bore Diameter 21.417-21.443 mm (0.843-0.844 inch)
Camshaft
Camshaft Bearing Inside Diameter 49.548-49.573 mm (1.9507-1.9517 inch)
Camshaft Journal Diameter 49.472-49.522 mm (1.9477-1.9497 inch)
Camshaft Lobe Lift
Exhaust 6.973-7.075 mm (0.2745-0.2785 inch)
Intake 6.924-7.026 mm (0.2726-0.2766 inch)
Camshaft Runout
Production 0.051 mm (0.002 inch)
Service 0.076 mm (0.003 inch)
Cylinder Head Height/Thickness 259.875-260.125 mm (10.231-10.241 inch)
Surface Flatness - Block Deck 0.05 mm (0.002 inch)
Surface Flatness - Exhaust Manifold Deck 0.102 mm (0.004 inch)
Surface Flatness - Intake Manifold Deck 0.08 mm (0.003 inch)
Exhaust Manifold
Surface Flatness 0.254 mm (0.01 inch)
Camshaft Sprocket Bolt 30 Nm (22 ft. lbs.)