GM Service Manual Online
For 1990-2009 cars only

    Important: If a new camshaft is installed, replace all the valve lifters.


    Object Number: 64545  Size: SH
  1. Coat the valve lifter rollers and inside of the valve lifter guides with prelube GM P/N 1052367 or the equivalent.
  2. Install the valve lifters in the same location from which they were removed.
  3. Install the valve lifter guides.
  4. Important: The valve lifter guide retainer must contact all of the valve lifter guides. If the valve lifter guide retainer is bent, the valve lifter guide retainer must be replaced.


    Object Number: 64543  Size: SH
  5. Install the valve lifter guide retainer
  6. Install the valve lifter guide retainer bolts
  7. Tighten
    Tighten the bolts to 26 N·m (20 lb ft).

    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.

    Important: The 7.4L engine uses different length intake and exhaust valve pushrods. The exhaust valve pushrods are longer than the intake valve pushrods.


    Object Number: 64539  Size: SH
  8. Install the valve pushrods. Be sure that the valve pushrods seat in the valve lifter sockets.
  9. Install the valve rocker arms, the balls, and the bolts.
  10. Tighten
    Tighten the bolts to 61 N·m (45 lb ft)


    Object Number: 64542  Size: SH
  11. Install the splash shield.