All parts › BMW M4 CSL › S58 engine › Valves
Valves
Part of S58 engine · about $1,400 to replace
What it is
24 valves with springs and hydraulic lash adjusters.
What it does
Admit charge air and release exhaust at the right moment.
How it fails
Carbon on the intake valves is small thanks to port + direct injection.
| Material | Intake: steel |
|---|---|
| exhaust: sodium-filled steel | |
| Spec | Intake 32 mm |
| exhaust 28 mm | |
| seat angle 45° |
Individual units
Intake valves cyl 1Intake valves cyl 2Intake valves cyl 3Intake valves cyl 4Intake valves cyl 5Intake valves cyl 6Exhaust valves cyl 1Exhaust valves cyl 2Exhaust valves cyl 3Exhaust valves cyl 4Exhaust valves cyl 5Exhaust valves cyl 6