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Cylinder Head: Installation

  1. Ensure cylinder head bolt threads and cylinder block holes are clean. Ensure all gasket holes align with cylinder block and arrow on gasket is pointing to front of engine. Apply GM Sealant (1052080) to cylinder head bolt threads.
  2. Install NEW cylinder head. Tighten bolts to specification in sequence. See TORQUE SPECIFICATIONS . See Fig 1. To complete installation, reverse removal procedure. Coat rocker arm bolts with GM Threadlock (12345493).
Fig 1: Cylinder Head Bolt Tightening Sequence
G90A04729Courtesy of GENERAL MOTORS CORP.
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