Cylinder Head Assembly

Cylinder Head
Valve Stem Protrusion 27 mm (1.063 inch)
Valve Guide Height 11.7 - 12.0 mm (0.46063 - 0.47244 inch)
Overall Height 128.2 - 128.4 mm (5.04724 - 5.05512 inch)
Minimum Overall Height After Machining 128.1 mm (5.04331 inch)
Valve System
Valve Lash Compensators Hydraulic
Seat Run Out (Maximum, All) 0.05 mm (0.00197 inch)
Face Run Out (Maximum, All) 0.03 mm (0.00118 inch)
Valve Stem Diameter Intake 5.465 - 5.479 mm (0.21516 - 0.21571 inch)
Valve Stem Diameter Exhaust 5.465 - 5.470 mm (0.21480 - 0.21535 inch)
Valve Diameter Intake 30.1 - 30.3 mm (1.18504 - 1.19291 inch)
Valve Diameter Exhaust 25.7 - 25.9 mm (1.01181 - 1.01969 inch)
Valve Seat Width Intake 1.0 - 1.4 mm (0.03937 - 0.05512 inch)
Valve Seat Width Exhaust 1.4 - 1.8 mm (0.05512 - 0.07087 inch)
Valve Face Angle 90° - 90° 40°
Valve Seat Angle 89.5° - 90°
Valve Guide Inside Diameter 5.5 - 5.512 mm (0.21654 - 0.21701 inch)

Intake Manifold Retaining Bolt/Nut 10 - 14 Nm (89 - 124 inch lbs.)
Cylinder Head Cover Bolt 12 - 14 Nm (106 - 127 inch lbs.)
Cylinder Head Bolt 20, 25 + 70° + 70° Nm (15, 18 + 70° + 70° ft. lbs.)
Intake Manifold Support Bracket Bolt 20 - 30 Nm (15 - 22 ft. lbs.)






Cylinder head bolts in the sequence