11 12 Cylinder Head with Valve Seat Cover N63 B44
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. 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 | ° | 70 |
| Valve seat width: Intake | mm | 0.9 +0.1 |
| Valve seat width: Exhaust | mm | 1.15 +0.1 |
| Valve seat | ||
| Valve seat surface: Outside dia. inlet | mm | 31.6+0.1 |
| Valve seat surface: Outside dia. exhaust | mm | 27.6+0.1 |