engine

Cylinder Head R&R Torque Specs

for 2006 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · 4WD

Units

7 fasteners

Seq

Component

Torque

Angle

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Cover Bolts

12 lb-ft · 16 Nm

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Cylinder Head Bolts (M12)

Critical

1) 37 lb-ft. 2) 59 lb-ft. 3) +60 degrees. 4) +60 degrees.

37 lb-ft · 50 Nm

120°

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Cylinder Head Bolts (M8)

Critical

Tighten small bolts to 18 lb-ft last.

18 lb-ft · 25 Nm

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Gasket Bolts

Critical

15 lb-ft · 20 Nm

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Mounting Bolts

20 lb-ft · 27 Nm

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Mounting Bolts

Critical

35 lb-ft · 47 Nm

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Sensor Bolts

8 lb-ft · 11 Nm

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