Installation

Figure 2 Cylinder Head:

INSTALLATION
1. Place the gasket in position over the dowel pins with the note "This Side Up" showing.
2. Install Cylinder head.
3. Coat the cylinder head bolt threads with sealer GM P/N 1052080 (or equivalent), install bolts, and torque bolts to 45 Nm (33 lb. ft.) + 90°, using J 36660. See Figure 2 for tightening sequence.
4. Connect oxygen sensor electrical connector. Refer to Vehicle / Locations / Connectors / Pictorial Views for harness locations. Connector Locations
5. Install secondary air injection pipe, if equipped.
6. Rotate engine back.
7. Install exhaust crossover pipe nuts to right exhaust manifold and torque nuts to 25 Nm ( 18 ft. lb. ) then raise vehicle.
8. Install exhaust pipe at rear exhaust manifold and torque bolts to 28 Nm ( 21 ft. lb. )then lower vehicle.
9. Install intake manifold and gasket. Refer to Intake Manifold / Service and Repair. Service and Repair
10. Inspect for proper fluid levels and for any leaks.

NOTE It is recommended that engine oil be drained and crankcase refilled with clean engine oil to avoid possible contamination by engine coolant and/or foreign material when removing cylinder head.