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Installation Procedure

WARNING: This page is about a different car, the 2002 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the valves, the springs, the seals and the caps to the cylinder head. Refer to CYLINDER HEAD ASSEMBLE .
    NOTE: Head gaskets are not interchangeable. The head gasket must be installed with the arrow pointing to the front of the engine. Installing the head gasket in any other direction will cause gasket failure and possible engine failure.
  2. Position the head gasket with the arrow pointing to the front of the engine.
    Fig 1: Head Gasket
    G01764266Courtesy of GENERAL MOTORS CORP.
  3. Install the cylinder head.
    Fig 2: Cylinder Head
    G01764267Courtesy of GENERAL MOTORS CORP.
    NOTE: This bolt is designed to permanently stretch when tightened. The correct part number fastener must be used to replace this type of fastener. Do not use a bolt that is stronger in this application. If the correct bolt is not used, the parts will not be tightened correctly. The system or the components may be damaged.
    NOTE: This engine uses special torque to yield head bolts. This design bolt requires a special tightening procedure. Failure to follow the given procedure will cause head gasket failure and possible engine damage.
  4. Install the new cylinder head bolts (1-8).

    Tighten: 

    1. 4.1. Tighten the cylinder head bolts (1-8) in the following sequence to 50 N.m (37 lb ft).
    2. 4.2. Use the J 36660-A to rotate the cylinder head bolts an additional (1-8) 120 degrees.
      3. Fig 3: Cylinder Head Bolts Tightening Sequence
      G01764268Courtesy of GENERAL MOTORS CORP.

  5. Install the left push rods and rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement 
  6. Install the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left 
  7. Install the left exhaust manifold. Refer to or EXHAUST MANIFOLD REPLACEMENT - LEFT (3.8L) in EXHAUST SYSTEM .
  8. Install the lower intake manifold. Refer to Intake Manifold Replacement - Lower (L36)  or Intake Manifold Replacement - Lower (L67) 
  9. Install the left spark plugs to the left cylinder head. Refer to SPARK PLUGS
  10. Install the left engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Left 
  11. Install the right engine mount strut bracket. Refer to Engine Mount Strut Bracket Replacement - Right Upper (L36) 
  12. Install the Ignition control module bracket and the ignition control module to the left cylinder head. Refer to IGNITION CONTROL MODULE .
  13. Install the air inlet duct to the throttle body.
  14. Connect the intake air temperature (IAT) sensor electrical connector.
  15. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36)  or Fuel Injector Sight Shield Replacement (L67) 
  16. Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM in ENGINE COOLING
  17. Fill the crankcase with engine oil. Refer to Engine Oil and Oil Filter Replacement 
  18. Connect the negative battery cable.
  19. Inspect for leaks.
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