The Skunk2 Alpha Valve Spring & Titanium Retainer Kit is engineered to maximize valvetrain performance in Honda H-Series engines. Designed for high-RPM operation, this kit includes precision dual valve springs and lightweight titanium retainers, offering superior control, reduced mass, and increased horsepower potential.

Each Alpha Valve Spring is constructed from premium chrome-silicone wire milled in Japan and paired using an interference-fit dual spring configuration to prevent valve float beyond 10,000 RPM. The Alpha Titanium Retainers are CNC-machined from medical-grade titanium, featuring radius-cut edges, strategic lightening grooves, and reduced height for improved valve seal clearance.

Developed and validated using advanced CAD/FEA tools, dyno testing, and real-world race conditions, this kit delivers proven reliability and performance under extreme engine speeds. Every retainer is serialized for traceability and individually inspected to ensure dimensional accuracy and structural integrity.

Key Features:

• Complete dual valve spring and titanium retainer upgrade

• Supports valvetrain stability at over 10,000 RPM

• Dual springs made from Japanese chrome-silicone wire

• Titanium retainers reduce valvetrain mass for increased power

• Radius-cut edges and lightening grooves for weight and clearance optimization

• CNC-machined from certified medical-grade titanium

• Serialized and inspected for quality control and traceability

• Designed, tested, and validated in-house by Skunk2 engineers

Technical Specifications:

• Seat Pressure: 50 lbs @ 1.400"

• Open Pressure: 205 lbs @ 0.900"

• Coil Bind Height: 0.880"

Vehicle Fitment:

• Honda F20B

• Honda H22A

What's Included:

• (1) Complete Set of Alpha Dual Valve Springs

• (1) Complete Set of Alpha Titanium Retainers