Left Side

REMOVAL PROCEDURE

IMPORTANT: During disassembly, keep the valve train components together and identified so that they can be installed in their original locations. Do a compression test and note the results before you do the following repairs:
^ Remove the cylinder head(s)
^ Disassemble the valve mechanism

CAUTION: Refer to Battery Disconnect Caution in Service Precautions.

1. Disconnect the negative battery cable.
2. Depressurize the fuel system. Refer to Fuel System Pressure Relief in Engine Fuel.
3. Drain the cooling system. Recover the cooling system. Refer to Draining, Flushing and Filling the Cooling System in Cooling and Radiator.
4. Remove the top half of the air cleaner assembly. Remove the throttle body duct.





5. Remove the exhaust crossover heat shield.





6. Remove the exhaust crossover.
7. Remove the valve rocker cover. Refer to Valve Rocker Arm Cover Replacement.
8. Remove the intake manifold. Refer to Upper Intake Manifold Replacement Upper Intake Manifold Replacement and Lower Intake Manifold Replacement.
9. Remove the left exhaust manifold. Refer to Exhaust Manifold Replacement.
10. Remove the oil level indicator. Refer to Oil Level Indicator and Tube Replacement.

IMPORTANT: Keep the pushrods in order. Install the pushrods in the original position.

11. Remove the pushrods.





12. Remove and discard the cylinder head bolts.
13. Remove the cylinder head.
14. Clean the mating surfaces on the following items:
^ Cylinder head
^ Cylinder block
^ Intake manifold
15. Clean the cylinder block bolt threads.

INSTALLATION PROCEDURE

^ Tool Required
- J 36660-A Torque Angle Meter





1. Place the cylinder head gasket in position over the dowel pins. Ensure that the This Side Up note is showing.
2. Install the cylinder head.





NOTICE: 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.

3. Install the NEW cylinder head bolts.
^ Tighten the bolts to 60 N.m (44 lb ft) in the sequence shown. Use the J 36660-A in order to tighten the bolts an additional 95 degrees.

4. Install the intake gasket.
5. Install the pushrods that are loosely retained by the rocker arms.
^ Install the pushrods in their original locations.
^ Coat the pushrod ends with prelube. Use GM P/N 1052356 or the equivalent.
^ The intake pushrods are marked with yellow stripes. The intake pushrods are 5 3/4 inches long.
^ The exhaust pushrods are marked with green stripes. The exhaust pushrods are 6 inches long.
^ Make sure that the pushrods seat in the lifter.

6. Install the rocker arm bolts. Refer to Valve Rocker Arm and Push Rod Replacement.
7. Install the intake manifold. Refer to Lower Intake Manifold Replacement and Upper Intake Manifold Replacement.
8. Install the valve rocker cover. Refer to Valve Rocker Arm Cover Replacement.
9. Install the oil level indicator. Refer to Oil Level Indicator and Tube Replacement.
10. Install the left exhaust manifold. Refer to Exhaust Manifold Replacement.





11. Install the crossover pipe.





12. Install the crossover heat shield.
13. Fill the cooling system. Refer to Draining, Flushing and Filling the Cooling System in Cooling and Radiator.
14. Install the throttle body duct. Install the top half of the air cleaner assembly.
15. Connect the negative battery cable.