Valve Seat: Specifications
| Valve Seat Angle | 45 Degrees (deg) | |
| Seat Diameter | Intake | 1.299 Inch (in) |
| Exhaust | 1.102 Inch (in) | |
| Runout (max.) | 0.002 Inch (in) | |
| Valve Seat Width | Intake and Exhaust | 0.035 - 0.051 Inch (in) |
| Service Limit - Intake | 0.079 Inch (in) | |
| Service Limit - Exhaust | 0.098 Inch (in) |