Description
High-revving engines demand valve springs engineered to maintain precise lift and closure at extreme RPMs—and the Isky 1.625 valve springs deliver the reliability needed for sustained performance. With a robust 550 lb/in spring rate and dual-spring design, these springs eliminate float and ensure consistent valve timing across your entire powerband. Whether you’re building a dedicated race engine or upgrading a street machine, this proven Isky design gives you the control and durability required when precision matters most.
- Dual spring damper
- 550 lb/in rate
- 1.625″ outer diameter
- 1.180″ coil bind
- Set of 16 springs
- RAD-9000 series
- Precision engineered
