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 MANUALSCADILLAC2013CTS COUPE RWD V8-6.2L SCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLY
2013 Cadillac CTS Coupe RWD V8-6.2L SC
Cylinder Head Assembly
2013 Cadillac CTS Coupe RWD V8-6.2L SCSECTION Cylinder Head Assembly
CYLINDER HEAD
M11 cylinder head bolts (1-10)
First pass in sequence to 50 Nm (37 lb ft)
Second pass in sequence to 80 degrees
Final pass in sequence to 55 degrees
Tighten the M8 cylinder head bolts (11-15) to 30 Nm (22 lb ft)
Re-Usability
Note: The cylinder head bolts are NOT reusable. Do not use the cylinder head bolts again. Install NEW cylinder head bolts during assembly.
SURFACE VARIATION
Cylinder Head
Surface Flatness - Block Deck
Measured within a 152.4 mm (6.0 in) Area 0.08 mm (0.003 in)
Measuring the Overall Length of the Cylinder Head 0.1 mm (0.004 in)
Block
Cylinder Head Deck Surface Flatness
Measured within a 152.4 mm (6.0 in) Area 0.11 mm (0.004 in)
Measuring the Overall Length of the Block Deck 0.22 mm (0.008 in)
Exhaust Manifold Specifications
Camshaft Gear/Sprocket Specifications
Intake Manifold Specifications
M11 cylinder head bolts (1-10)
First pass in sequence to 50 Nm (37 lb ft)
Second pass in sequence to 80 degrees
Final pass in sequence to 55 degrees
Tighten the M8 cylinder head bolts (11-15) to 30 Nm (22 lb ft)
Re-Usability
Note: The cylinder head bolts are NOT reusable. Do not use the cylinder head bolts again. Install NEW cylinder head bolts during assembly.
SURFACE VARIATION
Cylinder Head
Surface Flatness - Block Deck
Measured within a 152.4 mm (6.0 in) Area 0.08 mm (0.003 in)
Measuring the Overall Length of the Cylinder Head 0.1 mm (0.004 in)
Block
Cylinder Head Deck Surface Flatness
Measured within a 152.4 mm (6.0 in) Area 0.11 mm (0.004 in)
Measuring the Overall Length of the Block Deck 0.22 mm (0.008 in)
Exhaust Manifold Specifications
Camshaft Gear/Sprocket Specifications
Intake Manifold Specifications
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
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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.