engine

Cylinder Head R&R Torque Specs

for 2021 GMC Sierra 1500 6.2L V8 · RWD

Units

9 fasteners

Seq

Component

Torque

Angle

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Cover Bolts

16 lb-ft · 22 Nm

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Cylinder Head Bolts (M11)

TTY Bolts. Step 1: 22 lb-ft. Step 2: 90 deg. Step 3: 90 deg. Spiral sequence.

22 lb-ft · 30 Nm

180°

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Cylinder Head Bolts (M8)

Upper row small bolts. Tighten to 22 lb-ft in sequence (inner to outer).

22 lb-ft · 30 Nm

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Electrical Connector Bolts

7 lb-ft · 9 Nm

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Gasket Bolts

20 lb-ft · 27 Nm

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Gasket Surface Bolts

Clean mating surfaces

20 lb-ft · 27 Nm

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Mounting Bolts

47 lb-ft · 64 Nm

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Sensor Bolts

11 lb-ft · 15 Nm

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Sensor Mounting Bolts

11 lb-ft · 15 Nm

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