Chevrolet Silverado / GMC Sierra. Service manual — part 568

Fig. 158: Stampings
Courtesy of GENERAL MOTORS CORP.

1. Inspect the block for stampings (1) indicating cylinder overbore or a milled deck.

IMPORTANT: If the block has no stampings, the block has a standard bore

and deck.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 159: View Of Engine Block Heater
Courtesy of GENERAL MOTORS CORP.

2. Remove the engine block heater.

3. Remove the O-ring from the block heater and discard.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 160: View Of Oil Gallery Plug
Courtesy of GENERAL MOTORS CORP.

4. Remove the oil gallery plugs.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 161: View Of Left Engine Mount & Bolts
Courtesy of GENERAL MOTORS CORP.

5. Remove the left engine mount bolts.

6. Remove the left engine mount.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado