STK Performance Dual Valve Springs for Ford Kent Engines

The Ford Kent engine—a legendary powerplant found in everything from classic Escorts and Capris to Formula Ford race cars—has earned a reputation for being robust, tuneable, and high-revving. For enthusiasts looking to push this engine further, upgrading the valve train is essential. One of the most critical components in that process is the valve spring, and STK Performance Dual Valve Springs offer a modern solution for those aiming to extract more RPM, reliability, and power from their Kent engines.

Precision-Engineered for Performance

STK Performance’s dual valve springs are purpose-built for high-performance applications. Designed specifically for the Ford Kent crossflow and pre-crossflow engines, these springs are ideal for street, race, and historic motorsport builds.

Material Specification

  • Chrome Silicon Steel Alloy: STK springs are manufactured using premium-grade chrome silicon wire, known for its excellent fatigue resistance, high tensile strength, and durability at elevated temperatures.
  • Shot Peened & Heat Treated: Each spring is shot peened for surface stress relief and heat treated for long-term spring load retention and consistency.

Key Benefits

Higher RPM Capability

  • Dual spring configuration increases seat pressure and valve control, enabling safely raised RPM limits—essential for high-performance camshaft profiles and aggressive tuning.

Reduced Valve Float

  • Prevents valve float and bounce at high RPM, ensuring precise valve timing and optimal cylinder sealing under extreme conditions.

Race Proven

  • Used in numerous track-day, historic Formula Ford, and club racing applications.
  • Designed to withstand the rigours of sustained high-speed operation.

Why Choose STK Performance?

STK Performance combines decades of racing experience with modern materials science. Every valve spring set is tested for rate consistency and manufactured to exacting standards to meet the demands of motorsport enthusiasts and engine builders.

Whether you’re restoring a classic or building a competitive race engine, STK dual valve springs for the Ford Kent engine are a reliable upgrade that delivers real-world gains.

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