Cylinder Head Replacement - Right

This article has been updated with TSB 02-06-01-003B, 4/15/08
This bulletin is being revised to include a Notice advising that the cylinder head bolts are NOT TO BE RE-USED. Please discard Corporate Bulletin Number 02-06-01-003A.

Cylinder Head Replacement - Right (Rear)
- Tools Required
- J36660-A Torque Angle Meter
Removal Procedure

Important: During disassembly, keep the valve train components together and identified in order to install the components in their original locations. Perform a compression test. Record the results before you perform the following repairs:
- Remove the cylinder heads.
- Disassemble the valve mechanism.

1. Remove lower intake manifold. - Lower
2. Remove the exhaust crossover pipe.
3. Raise the support the vehicle. Refer to Vehicle Lifting.
4. Remove catalytic converter from exhaust manifold.
5. Lower the vehicle.
6. Remove the rocker arms and pushrods.





7. Remove the cylinder head bolts.
8. Remove the cylinder head.
9. Clean the mating surfaces on the following items:
- The cylinder head
- The cylinder block
- The intake manifold

10. Clean the cylinder block bolt threads.
11. Clean the cylinder head bolts.
12. If replacing cylinder head, remove the following components:
- Exhaust manifold.
- Accessory studs.
- Spark plugs.

Installation Procedure





1. If removed, install the following components:
- Exhaust manifold.
- Accessory studs.
- Spark plugs.

2. Place the cylinder head gasket in position over the dowel pins. Ensure that the THIS SIDE UP note is showing.
3. Install the cylinder head.
4. Coat the cylinder head bolt threads using GM P/N 1052080 sealer or an equivalent.

Notice: Refer to Fastener Notice in Service Precautions.

Notice: This component uses torque-to-yield bolts. When servicing this component, do not re-use the bolts. New torque-to-yield bolts must be installed. Re-using 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.





5. Install the NEW cylinder head bolts.
- Tighten the NEW cylinder head bolts to 60 Nm (44 lb ft) in the order shown. Use the J 36660-A torque angle meter in order to rotate the cylinder head bolts an additional 95 degrees.

6. Install the intake gasket.
7. Install the pushrods and rocker arms.
8. Raise and support the vehicle. Refer to Vehicle Lifting.
9. Install catalytic converter to manifold.
10. Lower the vehicle.





11. Install the exhaust crossover pipe.





12. Install the intake manifolds.
13. Connect negative battery cable.
14. Fill the cooling system.