Isky 1.625 Valve Springs 9955RAD

Valve springs are critical to maintaining precise valve timing and preventing float at high RPMs—failure here means catastrophic engine damage. The Isky 1.625 RAD-9000 springs deliver consistent lift and closure through aggressive cam profiles, making them essential for any serious performance or race engine build. With a dual-spring design and integrated damper, these springs eliminate harmonic resonance while maintaining reliability under extreme conditions.

• Valve Spring Type
• RAD-9000 Dual Spring
• Integrated Damper Design
• 545 lb/in Spring Rate
• 1.625 in Outside Diameter
• 1.240 in Coil Bind
• Set of 16 Springs
• CNC-Engineered Construction
• Race-Grade Materials
• Prevents Valve Float