Cylinder Head- Back View

2013 Buick Regal Turbo Premium, Standard TransSECTION Cylinder Head- Back View
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Bolts On Cylinder Head - Back View
GM2201824Courtesy of GENERAL MOTORS COMPANY
Cylinder Head- Back 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 M8 x 1.25 210 206 207 208 209 25 0.984 20 0.787
2 M12 x 1.75 865 856 857 858 859 18 0.709 14 0.551
3 M6 x 1 205 201 202 203 204 20 0.787 16 0.63
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.