STK Performance Parts - Racing Dual Valve Spring Kit for Mazda FE3 16v
High-performance valve train component kit by STK, engineered for durability and reliability in demanding applications. Designed to improve stability at high RPM and enhance valvetrain control.
Key Features
- Premium chromoly and forged components for strength
- Optimised for high-RPM stability and reduced valve float
- Suitable for solid and hydraulic applications where specified
- Installation difficulty: 3 / 5
What's Included
- Kit consists of:
- 16 × Dual Valve Springs (Inner + Outer)
- 16 × Inner Springs
- 16 × Outer Springs
- 16 × Chromoly Retainers (suitable for 6 mm valve stems)
Technical Specifications
Spring Pressure
- Seat Pressure @ 34 mm = 90 lbs
- Pressure at Full Lift = 200 lbs

