Chevrolet Silverado / GMC Sierra. Service manual — part 328

Fig. 333: Identifying Offset Intake Rocker Arm & Non-Offset Rocker Arm
Courtesy of GENERAL MOTORS CORP.

1. Remove the valve rocker arm bolts.

2. Remove the valve rocker arms.

The intake rocker arms (1) have an offset design.

IMPORTANT: Place the valve rocker arms, valve pushrods, and pivot

support, in a rack so they can be installed in the same
location from which they were removed.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 334: View Of Valve Rocker Arm Pivot Support
Courtesy of GENERAL MOTORS CORP.

3. Remove the valve rocker arm pivot support.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 335: View Of Pushrods
Courtesy of GENERAL MOTORS CORP.

4. Remove the pushrods.

CYLINDER HEAD REMOVAL - LEFT SIDE

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2

Fig. 336: View Of Cylinder Head & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Remove the cylinder head bolts (220, 221).

2. Remove the cylinder head (218).

IMPORTANT: The cylinder head bolts are of a torque-to-yield design and

are NOT to be used again. Install NEW cylinder head bolts
during assembly.

NOTE:

After removal, place the cylinder head on 2 wood blocks in
order to prevent damage to the sealing surfaces.

2008 Hummer H2

2008 ENGINE Engine Mechanical - 6.2L - H2