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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 2.4L) >> Specifications >> Thread Repair Specifications (LEA, or LUK) >> Cylinder Head Front View

Cylinder Head Front View

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Fig 1: Locating Bolts On Cylinder Head - Front View
GM2109051Courtesy of GENERAL MOTORS COMPANY
Cylinder Head Front View

Service Call Out Thread Size Insert Drill Counterbore Tool Tap Driver Drill Depth (Maximum) Tap Depth (Maximum)
EN42385850 MM (IN) MM (IN)
1 M6 x 1 205 201 202 203 204 20 0.787 16 0.63
2 M8 x 1.25 210 206 207 208 209 25 0.984 20 0.787
3 M22 x 1.5 No Service Tools Available THRU THRU