Our Conical Valve Spring Kit with Titanium Retainers for a Toyota B58B30 is built for Toyota B58B30 applications—engineered for reliable valve control, RPM stability, and long-term durability.

Conical valve springs taper from base to top to significantly reduce retainer/spring mass, improving harmonic control and valvetrain stability at high RPM.

Supertech valve springs are manufactured from premium Chrome Silicon alloys and heat-treated for fatigue resistance, while the included titanium retainers reduce valvetrain mass to improve control at higher engine speeds.

Features

• Conical spring design reduces mass for improved RPM capability
• Titanium retainers for lightweight, high-strength valvetrain support
• Enhanced harmonic control for stable high-speed valve motion
• Matched spring set for consistent pressures and performance
• CNC-machined components for accurate fit and reliability

Benefits

• Maximum RPM stability through reduced valvetrain mass
• Improved control for aggressive cam profiles and track use
• Reduced valve float risk under high-speed conditions
• More durable valvetrain operation under stress
• Race-proven performance characteristics