Intake Manifold: Installation

Clean all gasket mating surfaces. Apply 3/16" bead of silicone sealer at front and rear intake manifold mounting surface of cylinder block. Extend bead of sealer 1/2" up each cylinder head. See Fig 1.
Install intake manifold gaskets on cylinder heads. Install manifold and tighten attaching bolts before sealer sets up (10-15 minutes). See Fig 2. Install distributor with rotor pointing to chalk mark. To complete installation, reverse removal procedure.

Fig 1: Silicone Sealer Application Points

Courtesy of GENERAL MOTORS CORP.

Fig 2: Intake Manifold Tightening Sequence

Courtesy of GENERAL MOTORS CORP.