Installation Procedure

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Install the engine mount to the vehicle.
CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Install the engine mount to the engine mounting bolts.
Tighten

Tighten the engine mount to engine mounting bolts to 50 N.m (37 lb ft)
Lower the engine.

Fig 1: Installing Engine Mount & Bolts
Courtesy of GENERAL MOTORS CORP.
Install the engine mount to the frame mounting bolts.
Tighten

Tighten the engine mount to frame mounting bolts to 60 N.m (44 lb ft)

Fig 2: Installing Engine Mount To Frame Mounting Bolts
Courtesy of GENERAL MOTORS CORP.
Install the right side exhaust manifold. Refer to EXHAUST MANIFOLD REPLACEMENT - RIGHT (4.8L, 5.3L, 6.0L) or EXHAUST MANIFOLD REPLACEMENT-RIGHT (4.3L) .
Install the starter. Refer to STARTER MOTOR REPLACEMENT (4.8L, 5.3L & 6.0L) or STARTER MOTOR REPLACEMENT (4.3L) .
Lower the vehicle.