11 12 Cylinder Head with Valve Seat Cover N63 B44
WARNING: This page does not describe the selected car, but rather 23 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750i, and 2015 BMW 750Li xDrive. 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 |