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 MANUALSBUICK2011REGAL L4-2.4LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER HEAD ASSEMBLYSPECIFICATIONS
2011 Buick Regal L4-2.4L
Cylinder Head Assembly: Specifications
2011 Buick Regal L4-2.4LSECTION Specifications
CYLINDER HEAD TORQUE & SEQUENCE
Install NEW cylinder head fasteners
Cylinder Head Bolt
First Pass 30 Nm (22 lb ft)
Final Pass 155 degrees
SURFACE VARIATION
Cylinder Head
Surface Flatness - Block Deck
Longitude 0.050 mm (0.002 in)
Overall 0.1 mm (0.004 in)
Transverse 0.030 mm (0.0012 in)
Block
Cylinder Head Deck Surface Flatness
Longitude 0.050 mm (0.002 in)
Overall 0.08 mm (0.0031 in)
Transverse 0.030 mm (0.0012 in)
CAMSHAFT BEARING CAP
Camshaft Bearing Cap Bolt 10 Nm (89 lb in)
Intake Manifold Intake Manifold Replacement
Exhaust Manifold Service and Repair
Install NEW cylinder head fasteners
Cylinder Head Bolt
First Pass 30 Nm (22 lb ft)
Final Pass 155 degrees
SURFACE VARIATION
Cylinder Head
Surface Flatness - Block Deck
Longitude 0.050 mm (0.002 in)
Overall 0.1 mm (0.004 in)
Transverse 0.030 mm (0.0012 in)
Block
Cylinder Head Deck Surface Flatness
Longitude 0.050 mm (0.002 in)
Overall 0.08 mm (0.0031 in)
Transverse 0.030 mm (0.0012 in)
CAMSHAFT BEARING CAP
Camshaft Bearing Cap Bolt 10 Nm (89 lb in)
Intake Manifold Intake Manifold Replacement
Exhaust Manifold Service and Repair
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.