Cylinder Head Assembly

2013 Chevrolet Express 1500 RWD V6-4.3LSECTION Cylinder Head Assembly





Cylinder Head





First pass 30 Nm (22 lb ft)
Long bolts (1, 4, 5, 8, 9) a final pass 75 degrees
Medium bolts (12, 13) a final pass 65 degrees
Short bolts (2, 3, 6, 7, 10, 11) a final pass 55 degrees

Use NEW cylinder head bolts

Warpage maximum within a 152.4 mm (6.0 in)

Block deck 0.10 mm (0.004 in)
Exhaust manifold deck 0.05 mm (0.002 in)
Intake manifold deck 0.10 mm (0.004 in)

Intake Manifold Specifications

Exhaust Manifold Specifications

Camshaft Gear/Sprocket Specifications
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.