The Skunk2 Alpha Valve Spring Set for Honda H22A and F20B VTEC engines is designed for racers and engine builders demanding maximum valvetrain stability at extreme engine speeds. Engineered through years of motorsport development, these springs prevent valve float and maintain precise valve control beyond 10,000 RPM, ensuring reliable high-RPM operation under intense conditions.

Each Alpha Valve Spring is crafted from super-clean chrome-silicone wire milled in Japan, delivering exceptional consistency, fatigue resistance, and strength. Developed entirely in-house by Skunk2’s engineering team, these springs undergo rigorous dyno and on-road testing, including validation in 11,000 RPM drag engines and 17,000 RPM superbikes — proving their durability in the most demanding environments.

Built to deliver professional-grade performance at a more accessible price point, Skunk2 Alpha Valve Springs are ideal for both street and track builds. They serve as a cornerstone of the Skunk2 valvetrain lineup, trusted across thousands of competition engines worldwide.

Key Features:

• Stable beyond 10,000 RPM — prevents valve float at high engine speeds

• Made from premium chrome-silicone wire milled in Japan

• Developed and tested in-house on dyno and race engines

• Proven in 11,000 RPM drag engines and 17,000 RPM superbikes

• Consistent spring rates for precision and long-term reliability

• Ideal for high-performance street and race engines

• Direct replacement for OEM valve springs — no machining required

Technical Specifications:

• Seat Pressure: 50 lbs @ 1.400”

• Open Pressure: 205 lbs @ 0.900”

• Coil Bind: 0.880”

• Material: Super-clean chrome-silicone wire (Japan-milled)

• Max Safe RPM: 10,000+

• Testing: Engine dyno and track-tested

Vehicle Fitment:
Compatible with:

• Honda F20B (VTEC)

• Honda H22A (VTEC)

Included:

• (1) Complete Set of Alpha Valve Springs

• (1) Installation Guide