Valve Seat
Valve Seat| Valve Seat Angle | degs. | 45 |
| Correction angle - outer | degs. | 15 |
| Correction angle - inner | degs. | 60 |
| Valve seat width (dimension "B") | -- | -- |
| Intake | mm | 1.25 (+/- 0.25) |
| Exhaust | mm | 1.65 (+/- 0.35) |
| Seat Diameter | -- | -- |
| Intake O.D. | mm | 34.5 |
| Exhaust O.D. | mm | 30.0 |