engine

Head Gaskets - Both Torque Specs

for 2018 GMC Yukon 6.2L V8 · 4WD

Units

7 fasteners

Seq

Component

Torque

Angle

—

Camshaft Cap Bolts

Critical

Torque sequence

16 lb-ft · 22 Nm

—

Cylinder Head Bolts

Critical

Multi-step + angle

88 lb-ft · 119 Nm

—

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°

—

Cylinder Head Bolts (M8)

Critical

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

22 lb-ft · 30 Nm

—

Exhaust Manifold Nuts

Critical

34 lb-ft · 46 Nm

—

Intake Manifold Bolts

Critical

24 lb-ft · 33 Nm

—

Valve Cover Bolts

Critical

14 lb-ft · 18 Nm

—