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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1393 (Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L (1 Of 5)) >> Specifications >> Thread Repair Specifications >> Cylinder Head - Top/End Views

Cylinder Head - Top/End Views

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Cylinder Head - Top/End Views
GM1402168Courtesy of GENERAL MOTORS CORP.
Cylinder Head - Top/End Views

Hole Thread Size Insert Drill Counterbore Tool Tap Driver Drill Depth - Maximum mm (in) Tap Depth - Maximum mm (in)
J 42385-
1 M8 x 1.25 210 206 207 208 209 26.5 (1.04) 19.0 (0.784)
2 M6 x 1.0 205 201 202 203 204 20.05 (0.789) 16.05 (0.632)
3 M10 x 1.5 215 211 212 213 214 28.0 (1.10) 20.0 (0.787)
4 M6 x 1.0 205 201 202 203 204 22.5 (0.885) 15.0 (0.688)