11 12 Cylinder Head with Valve Seat Cover
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.
CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATION
| 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 |
| Ø Valve seat | ||
| Valve seat surface: Outside dia. inlet | mm | 31.6+0.1 |
| Valve seat surface: Outside dia. exhaust | mm | 27.6+0.1 |