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 MANUALSGMC2013SAVANA 3500 V8-6.6L DSL TURBOREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLY
2013 GMC Savana 3500 V8-6.6L DSL Turbo
Cylinder Head Assembly
2013 GMC Savana 3500 V8-6.6L DSL TurboSECTION Cylinder Head Assembly
Cylinder head
M12 bolts
First pass 50 Nm (37 lb ft)
Second pass 80 Nm (59 lb ft)
Third pass 60 degrees
Final pass 60 degrees
M8 bolts 25 Nm (18 lb ft)
Install NEW M12 cylinder head bolts
Reuse the M8 cylinder head bolts
Warpage maximum
Block deck 0.1 mm (0.0039 in)
Exhaust manifold 0.1 mm (0.0039 in) within a 453 mm (17.83 in) area
Intake manifold 0.3 mm (0.011 in) within a 493 mm (19.41 in) area
Intake Manifold Specifications
Exhaust Manifold Specifications
Camshaft Gear/Sprocket Specifications
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.