Valve Seat

Valve Seat
Angle 44.5 - 45°
Seat Diameter - Intake 34.37 - 34.63 mm (1.353 - 1.363 inch)
Seat Diameter - Exhaust 27.06 - 27.32 mm (1.065 - 1.075 inch)
Runout (Max.) 0.05 mm (0.002 inch)
Valve Seat Width - Intake and Exhaust 0.9 - 1.3 mm (0.035 - 0.051 inch)
Service Limit - Intake 2.0 mm (0.079 inch)
Service Limit - Exhaust 2.5 mm (0.098 inch)