Cylinder Head Assembly: Specifications

Cylinder Head:

Cylinder Head

Camshaft Sprocket-Bolt 54 Nm (40 ft. lbs.)

Exhaust Manifold-Bolts 28 Nm (250 in. lbs.)





Intake Manifold - Lower-Bolts 23 Nm (200 in. lbs.)
Intake Manifold - Lower Gasket Retainer-Bolts 12 Nm (105 in. lbs.)





Intake Manifold Upper-Bolts 12 Nm (105 in. lbs.)





Cylinder Head Bolt Re-Usability

The cylinder head bolts are torqued using the torque yield method, they should be examined BEFORE reuse. If the threads are necked down, the bolts must be replaced.
Necking can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the scale the bolt should be replaced.





Cylinder Head Bolt

Step 1: Bolts 1 - 8 to 61 Nm (45 ft. lbs.)
Step 2: Bolts 1 - 8 to 88 Nm (65 ft. lbs.)
Step 3: Bolts 1 - 8 (again) to 88 Nm (65 ft. lbs.)
Step 4: Bolts 1 - 8 turn an additional 1/4 Turn. (Do not use a torque wrench for this step.)

NOTE: Bolt torque after 1/4 turn should be over 122 Nm (90 ft. lbs.). If not, replace the bolt.