Valve Seat

Valve Seat Valve Contact Width 0.9 - 1.3 mm (0.035 - 0.051 inch)
Intake Oversize Rework Dimensions Of Valve Seat Hole:
0.30 Oversize 34.30 - 34.33 mm (1.3504 - 1.3516 inch)
0.60 Oversize 34.60 - 34.63 mm (1.3622 - 1.3634 inch)
Exhaust Oversize Rework Dimensions Of Valve Seat Hole:
0.30 Oversize 31.80 - 31.83 mm (1.2520 - 1.2531 inch)
0.60 Oversize 32.10 - 32.13 mm (1.2638 - 1.2650 inch)