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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 243 (Engine Mechanical - 2.4L - Specifications) >> Specifications >> Thread Repair Specifications (LAF) >> Cylinder Head - Top View
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Cylinder Head - Top View

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Bolts On Cylinder Head - Top View
GM2201821Courtesy of GENERAL MOTORS CORP.
Cylinder Head - Top View

Service Call Out Thread Size Insert Drill Counterbore Tool Tap Driver Drill Depth (Maximum) Tap Depth (Maximum)
EN 42385-850 MM (IN) MM (IN)
1 M6 x 1 205 852 N/A 203 204 24 0.945 20 0.787
2 M6 x 1 205 201 202 203 204 20 0.787 16 0.63
3 M14 x 1.75 854 857 N/A 858 859 THRU THRU
4 M8 x 1.25 854 853 N/A 208 209 30 1.182 27 1.063