Installation

Rocker Arms:

Figure 2 Cylinder Head:

SPECIAL TOOL REQUIRED (or equivalent)
^ J 36660, Torque/Angle Meter.

INSTALLATION
1. Place the gasket in position over the dowel pins, with the note "This Side Up" showing.
2. Install cylinder head.
3. Coat 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. Install intake gasket.
5. Install pushrods loosely retained with rocker arms.

NOTE: Install correct length pushrods: intake pushrods are marked orange and are 6 inches long; exhaust pushrods are marked blue and are 6 3/8 inches long.

6. Install rocker arm nuts and torque to 26 Nm (19 ft lb).
7. Install intake manifold and plenum.
8. Install valve covers.
9. Install oil level indicator.
10. Connect plug wires to cylinder head.
11. Install left exhaust manifold and torque bolts to 28 Nm (21 ft lb)
12. Install exhaust crossover pipe and torque nuts to 25 Nm (18 ft lb)
13. Fill cooling system.
14. Connect negative battery cable and torque bolt to 15 Nm (11 ft lb).
15. Install air cleaner assembly.
16. Perform idle learn procedure, refer to Fuel Delivery and Air Induction / Service and Repair / Idle Learn Procedure.
17. Inspect for proper fluid levels, leaks, and completion of repair.

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.