11 12 Cylinder Head With Valve Seat Cover N54 B30
WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATIONS
| Valve seat angle | ° | 45 |
| Correction angle: outer | ° | 15 |
| Correction angle: inner | ° | 60 |
| Valve seat width: Inlet | mm | 1.0 +0.1 |
| Valve seat width: Exhaust | mm | 1.2 +0.1 |
| Ø Valve seat | ||
| Valve seat surface: Outside dia. inlet | mm | 27.7+0.1 |
| Valve seat surface: Outside dia. exhaust | mm | 26.6+0.1 |