Chevrolet Silverado / GMC Sierra. Manual - part 393
Engine Front Cover - Front View
Service
Hole
Location
Thread
Size
Drill
Counterbore
Tool
Stop
Collar Tap Driver Insert
Drill
Depth
(Max)
Tap
Depth
(Min)
mm (in) mm (in)
1
M 8 x
1.25
-206
-207
N/A
-208
-209
-210
22 0.866 17 0.669
2
M 8 x
1.25
-206
-207
N/A
-208
-209
-210
17 0.669 12 0.472
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 18: Engine Front Cover (Front View)
Courtesy of GENERAL MOTORS CORP.
Engine Front Cover - Front View
Engine Front Cover - Side View
Service
Hole
Location
Thread
Size
Drill
Counterbore
Tool
Stop
Collar Tap Driver Insert
Drill
Depth
(Max)
Tap
Depth
(Min)
mm (in) mm (in)
1
M 8 x
1.25
-206
-207
N/A
-208
-209
-210
19 0.748 15 0.591
2
M 10 x
1.5
-211
-212
N/A
-213
-214
-216
20 0.788 16 0.630
3
M 6 x
1.0
-201
-202
N/A
-203
-204
-205
14 0.551 10 0.394
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 19: Engine Front Cover (Side View)
Courtesy of GENERAL MOTORS CORP.
Engine Front Cover - Side View
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Engine Front Cover - Bottom View
Fig. 20: Engine Front Cover (Bottom View)
Courtesy of GENERAL MOTORS CORP.
Engine Front Cover - Bottom View
Lower Rocker Arm Cover - Top View
Service
Hole
Location
Thread
Size
Drill
Counterbore
Tool
Stop
Collar Tap Driver Insert
Drill
Depth
(Max)
Tap
Depth
(Min)
mm (in) mm (in)
1
M 6 x
1.0
-201
-202
N/A
-203
-204
-205
14 0.551 10 0.394
2
M 6 x
1.0
-201
-202
N/A
-203
-204
-205
THRU
10 0.394
Service
Hole
Location
Thread
Size
Drill
Counterbore
Tool
Stop
Collar Tap Driver Insert
Drill
Depth
(Max)
Tap
Depth
(Min)
mm (in) mm (in)
1
M 8 x
1.25
-206
-207
N/A
-208
-209
-210
17 0.669 13 0.512
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado