Valve Seat

Angle (Intake and Exhaust)
Standard (New) 44.55-45.5°
Service Limit (Maximum) 44.5-45°

Width
Intake
Standard (New) 1.0-1.3 mm (0.0394-0.0512 inches)
Service Limit (Maximum) 1.6 mm (0.063 inches)
Exhaust
Standard (New) 1.3-1.6 mm (0.0512-0.0630 inches)
Service Limit (Maximum) 1.9 mm (0.075 inches)

Outside Diameter
Intake
Standard (New) 41.573-41.599 mm (1.6377-1.638 inches)
Exhaust
Standard (New) 35.073-35.099 mm (1.381-1.382 inches)

Bore (Cylinder Head)
Intake
Standard (New) 41.487-41.513 mm (1.633-1.634 inches)
Exhaust
Standard (New) 34.987-35.013 mm (1.377-1.378 inches)