engine

Cylinder Head R&R Torque Specs

for 2012 GMC Yukon 6.2L V8 · 4WD

Units

12 fasteners

Seq

Component

Torque

Angle

—

Cover Bolts

16 lb-ft · 22 Nm

—

Cover Bolts

16 lb-ft · 22 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

—

Electrical Connector Bolts

7 lb-ft · 9 Nm

—

Gasket Bolts

Critical

20 lb-ft · 27 Nm

—

Gasket Surface Bolts

Critical

Clean mating surfaces

20 lb-ft · 27 Nm

—

Mounting Bolts

27 lb-ft · 37 Nm

—

Mounting Bolts

Critical

47 lb-ft · 64 Nm

—

Mounting Bolts

Critical

47 lb-ft · 64 Nm

—

Sensor Bolts

11 lb-ft · 15 Nm

—

Sensor Mounting Bolts

11 lb-ft · 15 Nm

—

2012 GMC YUKON

12 fasteners