GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the valve rocker arm cover(s). Refer to Valve Rocker Arm Cover Replacement - Left Side and/or Valve Rocker Arm Cover Replacement - Right Side.

  2. Object Number: 54392  Size: SH
  3. Remove the rocker arm bolt(s).
  4. Remove the valve rocker arm(s) and the pushrod(s).

Installation Procedure


    Object Number: 187046  Size: SH
  1. Coat the ends of the push rods using prelube GM P/N 1052365 or the equivalent.
  2. Important: The intake valve push rods measure 144 mm (5.75 in) in length, (yellow).

  3. Install the push rods in their original location.
  4. The exhaust valve push rods measure 152.5 mm (6.0 in) in length, (green).


    Object Number: 54392  Size: SH
  5. Coat the rocker arm friction surfaces using prelube GM P/N 12345501 or GM P/N 8862586 (Canadian P/N 992704 or Canadian P/N 8862586) or the equivalent.
  6. Notice: Refer to Fastener Notice in the Preface section.

  7. Install the valve rocker arm(s) and the bolt(s).
  8. Tighten
    Tighten the bolts to 19 N·m (14 lb ft).

  9. Install the valve rocker arm cover(s). Refer to Valve Rocker Arm Cover Replacement - Left Side and/or Valve Rocker Arm Cover Replacement - Right Side.