Valve, Intake/Exhaust

Face angle 44-1/2°-45°
Head Diameter Intake 34.67-34.93 mm (1.364-1.375 inch)
Head Diameter Exhaust 30.37-30.63 mm (1.195-1.205 inch)
Length-Intake (Overall) 112.76-113.32 mm (4.439-4.461 inch)
Length-Exhaust (Overall) 109.59-110.09 mm (4.314-4.334 inch)
Valve Margin-Intake 1.285-1.615 mm (0.050-0.063 inch)
Valve Margin-Exhaust 0.985-1.315 mm (0.038-0.051 inch)]
Valve Stem Tip Height-Intake 48.04 mm (1.891 inch)
Valve Stem tip Height-Exhaust 47.99 mm (1.889 inch)
Stem Diameter-Intake 5.934-5.952 mm (0.234-0.234 inch)
Stem Diameter-Exhaust 5.906-5.924 mm (0.233-0.233 inch)
Stem-to-Guide Clearance-Intake 0.048-0.066 mm (0.0018 -0.0025 inch)
Stem-to-Guide Clearance-Exhaust 0.0736-0.094 mm (0.0029-0.0037 inch)
Max. Allowable Stem-to-Guide
Clearance-Intake and Exhaust 0.025 mm (0.010 inch)