Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSGMC2013SIERRA 3500 2WD V8-6.6L DSL TURBOREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSCYLINDER HEAD GASKET SELECTION SPECIFICATIONS
2013 GMC Sierra 3500 2WD V8-6.6L DSL Turbo
Cylinder Head Gasket Selection Specifications
2013 GMC Sierra 3500 2WD V8-6.6L DSL TurboSECTION Cylinder Head Gasket Selection Specifications
Cylinder Head Gasket Selection Specifications
Cylinder Head Gasket (First Design)
1 - Grade A
2 - Grade B
3 - Grade C
4 - Block Over-Bored
5 - Block Over-Bored and Deck Milled
6 - Right
7 - Left
Cylinder Head Gasket (Second Design)
1 - Grade A
2 - Grade B
3 - Grade C
4 - Right Bank Only
5 - Block Over-Bored
6 - Right
7 - Left
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.