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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 36 (Engine Mechanical - 6.6L - Introduction) >> Specifications >> Thread Repair Specifications >> Cylinder Head - Top View

Cylinder Head - Top View

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Fig 1: Cylinder Head (Top View)
GM1491208Courtesy of GENERAL MOTORS CORP.
Cylinder Head - 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 17 0.669 13 0.512
2 M 8 x 1.25 -206 -207 N/A -208 -209 -210 26 1.024 20 0.788
3 M 10 x 1.5 -211 -212 N/A -213 -214 -215 26 1.024 20 0.788