Chevrolet Silverado / GMC Sierra. Service manual — part 1978

Fig. 284: View Of Battery Cable Terminals & Stud
Courtesy of GENERAL MOTORS CORP.

1. Remove the oil level indicator. Refer to Oil Level Indicator and Tube Replacement.

2. Remove the intake manifold. Refer to Intake Manifold Replacement (L92 - First

Design) or Intake Manifold Replacement (L92 - Second Design) or Intake Manifold
Replacement (LY2 and LY6) or Intake Manifold Replacement (LH6, LMG, LY5 and
L76).

3. Remove the coolant air bleed pipe. Refer to Coolant Air Bleed Pipe Assembly

Replacement (LH6, LY5, LMG, L76, L92) or Coolant Air Bleed Pipe Assembly
Replacement (LY2, LY6) .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

4. Remove the right exhaust manifold. Refer to Exhaust Manifold Replacement - Right

Side (4.8L, 5.3L, 6.0L, and 6.2L) .

5. Remove the pushrods. Refer to Valve Rocker Arm and Push Rod Replacement.

6. Remove the negative battery cable stud (1) from the front of the right cylinder head.

7. Remove the negative battery cable terminal (2) and the engine harness terminal (3) from the

cylinder head.

Fig. 285: View Of Cylinder Head & Bolts
Courtesy of GENERAL MOTORS CORP.

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

are NOT to be reused.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

8. Remove and discard the cylinder head bolts (220, 221).

9. Remove the cylinder head (218).

Fig. 286: View Of Cylinder Head Gasket & Locating Pins
Courtesy of GENERAL MOTORS CORP.

10. Remove and discard the cylinder head gasket (217).

11. If required, clean and inspect the cylinder head. Refer to Cylinder Head Cleaning and

Inspection .

NOTE:

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

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Installation Procedure

CAUTION: Wear safety glasses in order to avoid eye damage.

NOTE:

Clean all dirt, debris, and coolant from the engine block cylinder
head bolt holes. Failure to remove all foreign material may result in
damaged threads, improperly tightened fasteners or damage to
components.

IMPORTANT:

Do not reuse the cylinder head bolts. Install NEW cylinder
head bolts during assembly.

Do not use any type of sealant on the cylinder head gasket
(unless specified).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado