GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 36660-A Torque/Angle Meter


    Object Number: 159198  Size: SH
  1. Install the new cylinder head gasket with the OBEN/TOP imprint toward the rear of the engine.
  2. Install the cylinder head to the engine block.

  3. Object Number: 159193  Size: MH

    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.

  4. Install the new cylinder head bolts.
  5. Tighten
    Tighten the cylinder head bolts to 25 N·m (18 lb ft).

  6. Use the J 36660-A to rotate the cylinder head bolts in the following sequence:
  7. Tighten

    1. The first pass rotate the cylinder head bolts 90 degrees.
    2. The second pass rotate the cylinder head bolts 90 degrees.
    3. The third pass rotate the cylinder head bolts 90 degrees.
    4. The fourth pass rotate cylinder head bolts 15 degrees.
    5. The fifth and final pass rotate the cylinder head bolts 15 degrees.