Removal Procedure

WARNING: This page is about a different variant/trim than selected.

Remove the intake manifold. Refer to Intake Manifold Replacement (LS3, LS7, LSA) Intake Manifold Replacement (LS7)
Disconnect the engine harness electrical connector from the oil pressure sensor and oil manifold..

Fig 1: Valve Lifter Oil Manifold

Courtesy of GENERAL MOTORS COMPANY

DO NOT lift the valve lifter oil manifold by the electrical lead frame.

Fig 2: Valve Lifter Oil Manifold

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Remove the valve lifter oil manifold bolts (2).
Remove the valve lifter oil manifold (1).

Fig 3: Gasket Retaining Strap Locations

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NOTE:

Remove only the outer gasket from the manifold. Do not disassemble any of the internal components of the manifold in an attempt to remove the 8 inner sealing gaskets. If the inner gaskets are cut or damaged, replace the manifold as an assembly. Only use a wire-cutter type tool in order to minimize the amount of debris. Do not use a rotary-type cutting tool on the retaining straps.

Identify the 8 gasket retaining strap locations (1-8).

Fig 4: Retaining Strap

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Using a cutter type tool, cut the 8 retaining straps.

Fig 5: Identifying Valve Cover Outer Gasket

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Remove the outer gasket (1) from the valve lifter oil manifold.