Tools Required

J 36660-A Torque Angle Meter

1. Clean the cylinder head gasket surfaces on the engine block.
2. Inspect the cylinder head locator dowel pins for proper installation.
3. Clean the cylinder head gasket surfaces on the cylinder head.




Important: Do not use any type sealer on the cylinder head gasket, unless specified.

4. Install the NEW cylinder head gasket in position over the cylinder head locator dowel pins.



5. Install the cylinder head onto the engine block.

Guide the cylinder head carefully into place over the dowel pins and the cylinder head gasket.




6. Apply sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the threads of the NEW cylinder head bolts.
7. Install the NEW cylinder head bolts finger tight.




Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

8. Tighten the cylinder head bolts in sequence on the first pass.

Tighten
Tighten the bolts in sequence on the first pass to 30 N·m (22 lb ft).

9. Use the J 36660-A in order to tighten the cylinder head bolts in sequence on the final pass.

Tighten

•	Tighten the long bolts (1, 4, 5, 8, and 9) on the final pass in sequence to 75 degrees.

•	Tighten the medium bolts (12 and 13) on the final pass in sequence to 65 degrees.

•	Tighten the short bolts (2, 3, 6, 7, 10, and 11) on the final pass in sequence to 55 degrees.




10. Install the spark plug wire support and bolts.

Tighten
Tighten only the rear spark plug wire support bolt to 12 N·m (106 lb in).

11. Remove the front spark plug wire support bolt.

The front spark plug wire support bolt is used to fasten the oil level indicator tube, and will be installed within the oil level indicator tube installation procedure.




12. Measure the NEW spark plugs for the proper gap.

Adjust the spark plug gap if necessary.

Specification
Spark plug gap to 1.52 mm (0.060 in).

13. Install the spark plugs.

Tighten

•	Tighten the spark plugs for a USED cylinder head to 15 N·m (11 lb ft).

•	Tighten the spark plugs for the initial installation of a NEW cylinder head to 30 N·m (22 lb ft).