Valve: Specifications

INTAKE VALVE:
Stem Diameter 7.935 - 7.953 mm (0.312 - 0.313 inch)
Face Angle 44 1/2°
Margin 0.794 mm (0.031 inch)
Head Diameter 45.5 mm (1.79 inch)
Length 125.385 - 126.025 mm (4.936 - 4.961 inch)
Lift (zero lash) 10.16 mm (0.400 inch)
Minimum Valve Length After Grinding Tip 124.892 mm (4.916 inch)
Valve Tip Height* 49.541 - 51.271 mm (1.950 - 2.018 inch)

EXHAUST VALVE:
Stem Diameter 7.906 - 7.924 mm (0.3112 - 0.3119 inch)
Face Angle 45°
Margin 1.191 mm (0.0469 inch)
Head Diameter 37.5 mm (1.476 inch)
Length 126.005 - 126.645 mm (4.960 - 4.986 inch)
Lift (zero lash) 10.16 mm (0.400 inch)
Minimum Valve Length After Grinding Tip 125.512 mm (4.941 inch)
Valve Tip Height 49.541 - 51.271 mm (1.950 - 2.018)

*NOTE: Measured from cylinder head surface.