Valve Seat
| Valve Seat Angle | 46 Degrees (deg) |
| Valve Seat Runout | 0.002 (maximum) Inch (in) |
| Valve Seat Width (Exhaust - Heavy Duty) | 0.059 - 0.101 Inch (in) |
| Valve Seat Width (Exhaust - Light Duty) | 0.065 -0.098 Inch (in) |
| Valve Seat Width (Intake) | 0.040 - 0.065 Inch (in) |