- Springs are made from super-clean, stress relieved chrome silicon wire
- Provide excellent durability and resistance to load loss when using aggressive camshaft profiles
- Includes unique 10° super keys and retainers
- Wider key angle ensures a stronger assembly vs. the OEM 7° keeper angle
- High-strength chromoly retainers
- 0.685" lift capable spring assembly
- Kit fits 5/16" valve stems
- 184 lb.