Intake Manifold: Installation

Install gaskets on cylinder heads. Apply a 3/16" (5 mm) bead of RTV sealant to front and rear intake manifold-to-cylinder block mounting surfaces. See Fig 1. Extend bead 1/2" (13 mm) beyond cylinder block-to-cylinder head junction.
Install intake manifold and bolts. Tighten bolts in sequence to specification. See Fig 2. See TORQUE SPECIFICATIONS . To complete installation, reverse removal procedure. Fill cooling system.

Fig 1: Applying RTV Sealant Before Installing Intake Manifold

Courtesy of GENERAL MOTORS CORP.

Fig 2: Intake Manifold Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.