Cylinder Head Overall Specifications

SERVICE SPECIFICATIONS
Cylinder Head Engine Block Deck Flatness:
Measured Within A 152.4 mm (6.0 inch) Area 0.11 mm (0.004 inch)
Measuring Overall Length Of Head 0.22 mm (0.008 inch)
Cylinder Head Exhaust Manifold Deck Flatness 0.22 mm (0.008 inch)
Cylinder Head Intake Manifold Deck Flatness 0.22 mm (0.008 inch)
Cylinder Head Height:
Measured From Cylinder Head Deck To Valve Rocker Arm Cover Seal Surface:
Minimum 120.2 mm (4.732 inch)
Valve Lift:
Exhaust 12.15 mm (0.479 inch)
Intake 11.99 mm (0.472 inch)
Valve Seat Angle 46°
Valve Seat Runout:
Maximum 0.05 mm (0.002 inch)
Valve Seat Width:
Intake 1.02 mm (0.04 inch)
Exhaust 1.78 mm (0.07 inch)

TORQUE SPECIFICATIONS
Cylinder Head Coolant Plug 20 Nm (15 ft. lbs.)
Cylinder Head Core Hole Plug 20 Nm (15 ft. lbs.)
Cylinder Head Bolts:
M11 Bolts In Sequence:
First Pass 30 Nm (22 ft. lbs.)
Second Pass 90°
Final Pass [1] 90°
Final Pass [2] 50°
M8 Inner Bolts In Sequence 30 Nm (22 ft. lbs.)

[1] Final Pass all M11 Bolts in sequence excluding the medium length bolts at the front and rear of each cylinder head.

[2] Final Pass M11 medium length bolts at front and rear of each cylinder head in sequence.