BMW M50 M52 S50 S52 Valve Spring Kit by Ferrea

Ferrea Valve Spring Kit – BMW M50, M52, S50, S52 Engines | 80lb Seat Pressure Increase valvetrain stability and eliminate performance-robbing valve float with the Ferrea High-Performance Valve Spring Kit, engineered specifically for BMW M50, M52, S50, and S52 engines. This kit is built to withstand the demands of high-lift camshafts and sustained high-RPM operation—conditions where stock springs fall short. Designed for High-RPM Performance With a seat pressure of 80 lbs, this spring kit provides the control needed to keep valves operating precisely at elevated engine speeds. Ideal for naturally aspirated and forced induction setups, the increased pressure helps prevent valve float, maintaining power and combustion efficiency at redline. Common Issues Addressed Valve Float: Prevents power loss and combustion instability at high RPMs. Spring Binding: Eliminates coil bind, which can lead to mechanical interference or spring failure. Spring Breakage: Reduces the risk of dropped valves