Left Side

1. Install the NEW exhaust manifold gasket.





2. Install the exhaust manifold.
3. Install the spark plug wire shields.
4. If reusing the fasteners, apply threadlock GM P/N 12345493 or equivalent to the threads of the exhaust manifold bolts and stud.

NOTICE: Refer to Fastener Notice in Service Precautions.

5. Install the exhaust manifold bolts and stud.
5.1. Tighten the exhaust manifold bolts and stud on the first pass to 15 Nm (11 ft. lbs.).
5.2. Tighten the exhaust manifold bolts and stud on the final pass to 30 Nm (22 ft. lbs.).
6. Install the spark plug wires to the spark plug wire retainers.
7. Install the spark plug wires onto the spark plugs.