Valve Seat: Specifications
| Seat Width | Intake | .047-.059 Inch (in) Note: Seat insert depression: standard, .027 inch; maximum, .055 inch. |
| Exhaust | .047-.059 Inch (in) Note: Seat insert depression: standard, .027 inch; maximum, .055 inch. | |
| Seat Angle | Intake | 45 Degrees (deg) |
| Exhaust | 45 Degrees (deg) | |
| Run Out | Intake | 0.0002 Inch (in) |
| Exhaust | 0.0002 Inch (in) |