Cylinder Head Assembly: Specifications

Camshaft Retainer Bolt 12 Nm (106 inch lbs.)
Camshaft Sprocket Bolt 30 Nm (22 ft. lbs.)

Cylinder Head Bolts

Do not reuse the cylinder head bolts. NEW cylinder head bolts must be used. The cylinder head bolts are torque-to-yield bolts and cannot be reused once the initial torque is applied. During the initial torque of the cylinder head bolt the cylinder head bolt is stretched to achieve proper clamp load. Proper clamp load will not be achieved if a used cylinder head bolt is torqued again. A stretched cylinder head bolt can also break when torqued. Failure to replace the used cylinder head bolts with NEW cylinder head bolts can lead to improper clamp loads and extensive engine damage.





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 Nut 16 Nm (12 ft. lbs.)
Exhaust Manifold Stud 20 Nm (15 ft. lbs.)





Intake Manifold Bolts - First Pass In Sequence 5 Nm (44 inch lbs.)
Intake Manifold Bolts - Second Pass In Sequence 8 Nm (71 inch lbs.)
Intake Manifold Bolts - Third Pass In Sequence 12 Nm (106 inch lbs.)
Intake Manifold Bolt - Final Pass In Sequence 15 Nm (11 ft. lbs.)
J 36857 Bolt 40 Nm (30 ft. lbs.)
J 42847 Bolt 50 Nm (37 ft. lbs.)

Cylinder Head
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)