1.470 Dual Valve Spring Kit - w/Damper 98445-K12

High-RPM stability and consistent valve control demand a dual spring setup that can handle sustained load cycles without fatigue or float. This 1.470 OD dual valve spring kit with damper delivers the pressure retention and harmonics management required for forced-induction and naturally-aspirated performance builds pushing beyond stock valve train limits. Whether you're chasing reliability on the strip or precision on the circuit, proper spring rate selection is non-negotiable—and this 399 lb/in configuration bridges the gap between aggressive lift profiles and extended component life.

• Dual spring design
• 399 lb/in spring rate
• 1.470 in outer diameter
• 1.080 in coil bind
• Integrated damper included
• Kit format
• MPN: 98445-K12