Valve Seat
| Angle | 44.5 - 45 Degrees (deg) | |
| Diameter | Intake | 1.353 - 1.363 Inch (in) |
| Exhaust | 1.065 - 1.075 Inch (in) | |
| Runout | (Max.) | 0.002 Inch (in) |
| Width | Intake and Exhaust | 0.035 - 0.051 Inch (in) |
| Service Limit | Intake | 0.079 Inch (in) |
| Service Limit | Exhaust | 0.098 Inch (in) |