GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 GMC Sierra Denali 🢒 Engine 🢒 Engine Mechanical - 4.8L, 5.3L, and 6.0L 🢒 Cylinder Head Replacement - Right Side

Tools Required

    • J 42385-200 Thread Repair Kit
    • J 45059 Angle Meter

Removal Procedure

    Object Number: 1424504 Size: SH
  1. Remove the oil level indicator. Refer to Oil Level Indicator and Tube Replacement .
  2. Remove the intake manifold. Refer to Intake Manifold Replacement .
  3. Remove the coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly Replacement .
  4. Remove the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side .
  5. Remove the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .

    6. Important: The cylinder head bolts are NOT reusable.

  6. Remove the cylinder head bolts.

    7. Object Number: 832960 Size: SH

    Notice: After removal, place the cylinder head on 2 wood blocks in order to prevent damage to the sealing surfaces.

  7. Remove the cylinder head.

    8. Object Number: 832965 Size: SH
  8. Remove and discard the cylinder head gasket.
  9. If required, clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and Inspection .

Installation Procedure

Caution: Wear safety glasses in order to avoid eye damage.

Notice: Clean all dirt, debris, and coolant from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in damaged threads, improperly tightened fasteners or damage to components.

Important: 

   • Do not reuse the cylinder head bolts. Install NEW cylinder head bolts during assembly.
   • Do not use any type of sealant on the cylinder head gasket (unless specified).
   • The cylinder head gaskets must be installed in the proper direction and position.


    Object Number: 63235 Size: SH
  1. Clean the engine block cylinder head bolt holes (if required).

    2. Thread repair tool J 42385-107, found in J 42385-200 may be used to clean the threads of old threadlocking material.

  2. Use spray cleaner to clean out the hole. Refer to Adhesives, Fluids, Lubricants, and Sealers for the correct part number.
  3. Clean the cylinder head bolt holes with compressed air.
  4. Check the cylinder head locating pins for proper installation, location (a) 8.3 mm (0.327 in).

    5. Object Number: 832967 Size: SH
  5. When properly installed, with FRONT on the right side, the tab on the cylinder head gasket should be located right of center or closer to the front of the engine.

    6. Object Number: 832965 Size: SH
  6. Install the NEW cylinder head gasket.

    7. Object Number: 832960 Size: SH
  7. Install the cylinder head.

    8. Object Number: 1424504 Size: SH
  8. Install the NEW cylinder head bolts.

    9. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 260150 Size: SH
  9. Tighten the cylinder head bolts.

    10. Tighten

    1. Tighten the M11 cylinder head bolts (1-10) a first pass in sequence to 30 N·m (22 lb ft).
    2. Tighten the M11 cylinder head bolts (1-10) a second pass in sequence to 90 degrees using J 45059 .
    3. Tighten the M11 cylinder head bolts (1-10 ) a final pass to 70 degrees in sequence using J 45059 .
    4. Tighten the M8 cylinder head bolts (11-15) to 30 N·m (22 lb ft). Begin with the center bolt (11) and alternating side-to-side, work outward tightening all of the bolts.
  10. Install the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
  11. Install the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right Side .
  12. Install the coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly Replacement .
  13. Install the intake manifold. Refer to Intake Manifold Replacement .
  14. Install the oil level indicator. Refer to Oil Level Indicator and Tube Replacement .