For 1990-2009 cars

### Removal Procedure

1. Remove the left (front) valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
2. Remove the right (rear) valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
3. Remove the upper intake manifold. Refer to Upper Intake Manifold Replacement .
4. Remove the lower intake manifold. Refer to Lower Intake Manifold Replacement .
5. Remove the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
6. Remove the lifter guide bolts.
7. Remove the lifter guide.
8. Remove the lifter.

### Installation Procedure

1. Coat the lifters with prelube GM P/N 1052365 or equivalent.
2. Install the lifters to the same location from which they were removed.
3. Install the lifter guide.
4. Install the lifter guide bolts.

Tighten
Tighten the bolts to 10 N·m (89 lb in).

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.

5. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
6. Install the lower intake manifold. Refer to Lower Intake Manifold Replacement .
7. Install the upper intake manifold. Refer to Upper Intake Manifold Replacement .
8. Install the right (rear) valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
9. Install the left (front) valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .