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Cylinder Head - Back View

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GM2716773Courtesy 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 MM IN MM IN
1 M6 x 1 205 201 202 203 204 20 0.787 16 0.63
2 M6 x 1 205 701 one 203 204 20 0.787 16 0.63
3 M8 x 1.25 181213 206 207 208 209 29.0 1.14 29.0 1.14
4 M12 x 1.75 865 856 857 858 859 18 0.709 14 0.551