Description
Isky’s 1.550in valve springs are engineered for high-RPM reliability and consistent valve control in demanding racing applications. The dual-spring design with damper eliminates harmonics and float, maintaining precise valve timing under extreme cylinder pressures. Whether you’re building a street-strip hybrid or a full race engine, these springs deliver the repeatability and durability serious builders demand.
- Dual spring/damper
- 470 lb/in spring rate
- 1.170 in coil bind
- 1.560 in outer diameter
- 1.550 in seat height
- Set of 16
- MPN 9365









