Chevrolet Silverado / GMC Sierra. Manual — part 2166

Courtesy of GENERAL MOTORS CORP.

5. Using the J 8087 , measure the cylinder bore inside diameter (ID). Measure at a point 64

mm (2.5 in) from the top of the cylinder.

6. Record the cylinder bore ID.

7. Subtract the piston OD from the cylinder bore ID in order to determine the piston-to-bore

clearance. Refer to Engine Mechanical Specifications (RPO LY5 VIN J) or Engine
Mechanical Specifications (RPO LC9 VIN 3) or Engine Mechanical Specifications
(RPO LY2 VIN C) or Engine Mechanical Specifications (RPO LH6 VIN M) or
Engine Mechanical Specifications (RPO LMG VIN 0) or Engine Mechanical
Specifications (RPO LY6 VIN K) or Engine Mechanical Specifications (RPO L76
VIN Y) or Engine Mechanical Specifications (RPO L92 VIN 8) .

8. If the proper clearance cannot be obtained, select another piston and pin assembly and

measure the clearances again. If the proper fit cannot be obtained, the cylinder bore may
require honing for an oversize piston.

Piston, Pin, and Connecting Rod Installation

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

Fig. 182: View Of Piston, Connecting Rod & Bearing Assembly
Courtesy of GENERAL MOTORS CORP.

1. Lubricate the following components with clean engine oil:

Piston

Piston rings

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