Valve, Intake/Exhaust

Face
Runout, Maximum 0.05 mm (0.002 inch)
Angle 45.6°
Intake 38.90-39.10 mm (1.531-1.539 inch)
Exhaust 33.91-34.11 mm (1.335-1.343 inch)
Lift, Maximum (Theoretical) 10.28 mm (0.405 inch)
Stem Diameter
Intake 8.025-8.043 mm (0.3159-0.3167 inch)
Exhaust 7.996-8.017 mm (0.3149-0.3156 inch)
Stem End
Maximum Resurfaceing 0.254 mm (0.010 inch)