11 12 Cylinder Head with Valve Seat Cover M54/M56
WARNING: This page does not describe the selected car, but rather 38 other vehicles, including the 2006 BMW M3, 2006 BMW 330Ci, 2006 BMW 325Ci, 2005 BMW M3, and 2005 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD WITH VALVE SEAT COVER M54 B 30 SPECIFICATION
| Valve seat angle | ° | 45 |
| Correction angle: outer | ° | 15 |
| Correction angle: inner | ° | 60 |
| Valve seat width: Inlet | mm | 1.65 +/- 0.25 |
| Valve seat width: Exhaust | mm | 1.65 +/- 0.25 |
| Diameter - Valve seat | ||
| Valve seat surface: Outside dia. inlet | mm | 32.4 |
| Valve seat surface: Outside dia. exhaust | mm | 30.0 |