Description
Manley’s 1.580 Dual Valve Springs deliver the reliability and consistent performance you need for high-RPM applications where stock springs fall short. Built with NexTek technology, these dual springs maintain valve control across aggressive cam profiles without sacrificing longevity. Whether you’re running a dedicated track engine or pushing your street build to its limits, this set of 16 provides the exact spring rate and bind characteristics required for precision valve train management.
- Dual spring design
- 535 lb/in rate
- 1.580″ outer diameter
- 1.170″ coil bind
- NexTek construction
- Set of 16 springs
- Bolt-on installation
- MPN: 221443-16








