The Ferrea Valve Spring Kit for BMW S68 engines is engineered for superior durability and performance under extreme conditions. Factory valve springs can struggle to meet the demands of high boost, aggressive cam profiles, and sustained high RPM, leading to valve float and potential engine failure. Ferrea valve springs are designed to prevent these issues by offering increased seat pressure and improved coil bind clearance, ensuring precise valve control at all RPM ranges. By stabilizing valve motion, these upgraded springs enhance airflow efficiency and overall cylinder head performance, allowing for higher rev limits and maximum power output. Whether you're building a high-performance street car or a dedicated race engine, Ferrea valve springs provide strength and consistency. Kit Contents: (32) High Performance Chrome Silicon Valve Springs (32) Precision-Fit Spring Seats (32) Titanium Spring Retainers (32) Viton Valve Stem Seals Key Benefits: Optimized for BMW S68 Engines Superior Valve Control: Premium chrome-silicon steel valve springs maintain stability at high RPMs. Lightweight Titanium Retainers: Increase engine response while decreasing the risk of valve float. Precision Spring Seats: Designed for exact compatibility with S68 engines for optimal support. Ideal for High-Performance Applications: Perfect for racing, track use, and high-performance street setups. Spring Kit SpecificationsSeat Pressure: 90 lbsOpen Pressure: 170 lbsMax Net Lift: 11 mmCoil Bind: 24.85mmRate Inch: 201 lbsID: 16.82mmOD: 23.40mm BMW S68 Applications: BMW M5 Series 2024+ BMW G90 M52024+ BMW G99 M5 BMW 7 Series 2022+ BMW G70 760i xDrive BMW XM Series 2022+ BMW G09 XM BMW X5 Series 2023+ BMW G05 X5 M60i BMW X6 Series 2023+ BMW G06 X6 M60i2024+ BMW F96 X6 M Competition BMW X7 Series 2023+ BMW G07 X7 M60i Note: Installation requires the expertise of an engine builder.
