Valve Seat

WIDTH (INTAKE AND EXHAUST):
Standard (New) 1.25 - 1.55 mm (0.049 - 0.061 inch)
Service Limit 2.0 mm (0.08 inch)

STEM INSTALLED HEIGHT:

Intake:
Standard (New) 40.765 - 41.235 mm (1.6049 - 1.6234 inch)
Service Limit 41.485 mm (1.6333 inch)

Exhaust:
Standard (New) 42.765 - 43.235 mm (1.6837 - 1.7022 inch)
Service Limit 43.485 mm (1.7120 inch)