Cylinder Head Installation - Right Side

Tools Required

• J 42385-100  Head/Main Bolt Thread Repair Kit. See Special Tools .
• J 45059  Angle Meter. See Special Tools .

Fig 1: View Of Cylinder Head Locating Pins
Courtesy of GENERAL MOTORS CORP.
CAUTION: Refer to Safety Glasses Caution .
NOTE: 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 use the cylinder head bolts again. Install NEW cylinder head bolts during assembly.
• Do not use any type sealant on the cylinder head gasket, unless specified.
1. Clean the engine block cylinder head bolt holes, if required.

   Thread repair tool J 42385-107 may be used to clean the threads of old threadlocking material.

2. Spray cleaner GM P/N 12346139, GM P/N 12377981 (Canadian P/N 10953463), or equivalent, into the hole.
3. Clean the cylinder head bolt holes with compressed air.
4. Check the cylinder head locating pins for proper installation.
Fig 2: View Of Cylinder Head Gasket Displacement Markings
Courtesy of GENERAL MOTORS CORP.
5. Inspect the displacement markings (1) on the gasket, for proper usage.
Fig 3: View Of Right Cylinder Head Gasket And Alignment Pins
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: When properly installed, the tab on the right cylinder head gasket will be located right of center or closer to the front of the engine.
6. Install the NEW right cylinder head gasket onto the locating pins.
Fig 4: View Of Right Cylinder Head
Courtesy of GENERAL MOTORS CORP.
7. Install the cylinder head onto the locating pins and the gasket.
8. Install the NEW cylinder head bolts.
Fig 5: Cylinder Head Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice .
9. Tighten the cylinder head bolts.

   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 the J 45059  . See Special Tools .
   3. Tighten the M11 cylinder head bolts (1-10) a final pass in sequence to 70 degrees using the J 45059  . See Special Tools .
   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.