76. Cylinder Head Installation - Left

Cylinder Head Installation - Left

Tools Required
- J36660-A Torque Angle Meter

Important:
- Make sure that the block gasket surfaces are clean.
- The head gasket material is soft. Handle the gasket with care. Ensure the gasket surface is not creased or dented.
- Do not use a sealer on the head gasket. The head gasket is made with sealant on the gasket surface. Additional sealer may cause leakage or malfunction. In addition, some sealers may attack the initial sealant on the gasket.





1. Install the left cylinder head gasket to the block, over the cylinder head dowel pins.
2. Install the left cylinder head to the block, over the cylinder head gasket and the cylinder head dowel pins.





3. Apply the thread sealant GM P/N United States 12346004, GM P/N Canada 10953480, or equivalent, to the bolt threads and under the bolt heads.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the cylinder head bolts using the installation and tightening sequence (1-17).
4.1. In sequence (1-17), tighten all of the cylinder head bolts to 25 Nm (20 ft. lbs.).
4.2. In sequence (1-17), tighten ail of the cylinder head bolts to 75 Nm (55 ft. lbs.).
4.3. In sequence (1-17), retighten all of the cylinder head bolts to 75 Nm (55 ft. lbs.).
4.4. Using the J36660-A, tighten all of the cylinder head bolts in sequence (1-17) an additional 90 degrees - 100 degrees, 1/4 plus turn.