engine

Head Gaskets - Both Torque Specs

for 2005 GMC Yukon XL 5.3L V8 Vortec · 4WD

Units

7 fasteners

Seq

Component

Torque

Angle

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Camshaft Cap Bolts

Critical

Torque sequence

15 lb-ft · 20 Nm

—

Cylinder Head Bolts

Critical

Multi-step + angle

81 lb-ft · 110 Nm

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Cylinder Head Bolts (M11)

Critical

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)

Critical

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

22 lb-ft · 30 Nm

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Exhaust Manifold Nuts

Critical

31 lb-ft · 42 Nm

—

Intake Manifold Bolts

Critical

23 lb-ft · 31 Nm

—

Valve Cover Bolts

Critical

13 lb-ft · 17 Nm

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