Ferrea Titanium Valve Retainers for BMW S42/M42/M50/S50/M52/M54 Double Spring...

Ferrea Titanium Valve Retainers — BMW S42/M42/M50/S50/M52/M54 (Set of 12) Upgrade valve train performance with Ferrea’s precision-machined titanium valve retainers, engineered for BMW S42, M42, M50, S50, M52 and M54 engines. This set of 12 retainers is designed for double-spring, 7° pro configurations to deliver reliable, lightweight strength for high-rev and high-stress applications. Key Features Material: Aerospace-grade titanium for exceptional strength-to-weight ratio and corrosion resistance. Design: CNC-machined with a 7° profile optimized for double-spring setups and precise valve seating. Fitment: Direct fit for BMW S42/M42/M50/S50/M52/M54 valve stems — ideal for performance builds and race engines. Set Quantity: Includes 12 retainers — enough for six dual-spring valve locations (or as required per application). Durability: Reduced reciprocating mass lowers valve float risk at high RPM and improves spring life. Why Choose Ferrea? Ferrea is a trusted name in high-performance valvetrain components. These retainers combine precise tolerances and lightweight titanium construction to enhance engine responsiveness, reliability, and safety under severe operating conditions. Perfect for: Track builds, high-RPM street engines, motorsport applications, and any BMW enthusiast upgrading to a double-spring valvetrain.