11 12 Cylinder Head with Valve Seat Cover N55 B30
CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATION
| Valve seat angle | ° | 45 |
| Correction angle: outer | ° | 35 |
| Correction angle: Inner, exhaust valve | ° | 60 |
| Correction angle: Inner, intake valve | ° | 65 |
| Valve seat width: Intake | mm | 1.25 +0.2 |
| Valve seat width: Exhaust | mm | 1.65+0.2 |
| Ø theoretical valve seat | ||
| Valve seat surface: Outside dia. inlet | mm | 30.4+0.1 |
| Valve seat surface: Outside dia. exhaust | mm | 26.6+0.1 |