GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1342411  Size: SH

    Important: Install the valve bridge with the expansion side of bridge away from the injector.

  1. Install the valve bridge.

  2. Object Number: 660488  Size: SH
  3. Install the valve bridge pins.
  4. Install the pushrods.

  5. Object Number: 663833  Size: SH

    Notice: The pushrods must be correctly seated in the valve lifter and valve rocker arms before the rocker arm shaft assembly is torqued into place. Improper seating of the pushrods can cause damage to the pushrods or the valve rocker arm shaft assembly components.

  6. Install the rocker arm shaft assembly.

  7. Object Number: 721463  Size: SH

    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. Install the rocker arm shaft assembly bolts.
  9. Tighten
    Tighten the rocker arm shaft assembly bolts in the proper sequence. Tighten the rocker arm shaft bolts to 41 N·m (30 lb ft).