Cylinder Head Assembly

2012 Ford F 450 4WD Super Duty V10-6.8LSECTION Cylinder Head Assembly



Cylinder Head

NOTE: LH shown, RH similar.

NOTE: Be sure to tighten the bolts in 3 stages.

Tighten the bolts in the sequence shown.
Stage 1: Tighten to 40 Nm (30 lb-ft).
Stage 2: Tighten an additional 90 degrees.
Stage 3: Tighten an additional 90 degrees.






Bolt re-usability

NOTICE: The cylinder head bolts must be discarded and new bolts installed or engine damage may occur. They are a tighten-to-yield design and cannot be reused.


Surface Variation -- Head-to-block, Head-to-manifolds And Surface Variation -- Warpage





















a The pin bore and crank bearing bore must be parallel and in the same vertical plane within the specified total difference when measured at the ends of a 203 mm bar, 105.5 mm on each side of rod centerline.


Camshaft Bearing Cap

LH




Tighten the 12 LH camshaft bearing cap bolts in 2 stages:
Stage 1: Tighten to 8 Nm (71 lb-in) in the sequence shown.
Stage 2: Tighten an additional 45 degrees.










RH

Tighten the 12 RH camshaft bearing cap bolts in 2 stages:
Stage 1: Tighten to 8 Nm (71 lb-in) in the sequence shown.
Stage 2: Tighten an additional 45 degrees.







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.