engine

Intake Manifold Torque Specs

for 2022 GMC Sierra 3500HD 6.6L V8 L8T · 4WD

Units

6 fasteners

Seq

Component

Torque

Angle

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Cover Bolts

12 lb-ft · 16 Nm

—

Fuel Rail Bolts

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

9 lb-ft · 12 Nm

—

Intake Manifold Bolts

Critical

Tighten in sequence from center out | ⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

18 lb-ft · 25 Nm

—

Mounting Bolts

Critical

35 lb-ft · 47 Nm

—

PCV Valve

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

6 lb-ft · 8 Nm

—

Throttle Body Bolts

Critical

⚠️ VERIFY SEQUENCE WITH SERVICE MANUAL

7 lb-ft · 10 Nm

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