GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 45059 Angle Meter

For equivalent regional tools, refer to Special Tools.


    Object Number: 1557858  Size: SH

    Caution: Head gaskets are specific for right hand and left hand applications, and also must be installed with the correct side facing up. Note the markings (1) on the head gaskets for proper installation. Failure to do so may lead to engine damage.

    Caution: This component uses torque-to-yield bolts. When servicing this component do not reuse the bolts, New torque-to-yield bolts must be installed. Reusing used torque-to-yield bolts will not provide proper bolt torque and clamp load. Failure to install NEW torque-to-yield bolts may lead to engine damage.

  1. Install the cylinder head locator dowel pins, if necessary.
  2. Inspect the cylinder head locator dowel pins for proper installation.

  3. Object Number: 54362  Size: SH
  4. Install the cylinder head gasket.

  5. Object Number: 1369266  Size: SH
  6. Install the cylinder head.
  7. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 826677  Size: SH
  8. Install the NEW small hex cylinder head bolts (5 and 8).
  9. Install the NEW large hex cylinder head bolts (1, 2, 3, 4, 6 and 7).
  10. 6.1. Tighten the cylinder head bolts a first pass in sequence to 60 N·m (44 lb ft).
    6.2. Tighten the cylinder head bolts a final pass in sequence to 140 degrees using the J 45059 meter .