1.324 Dual Valve Spring - RPM Series (1)

The 1.324 Dual Valve Spring - RPM Series from PAC Racing Springs is designed for high-performance engine builders and enthusiasts who require reliable valve control at extreme RPMs. This dual valve spring is essential for both forced-induction and naturally aspirated performance applications, ensuring that valve dynamics are managed effectively to prevent float and maintain timing accuracy.

The RPM Series features a dual-spring architecture with matched rate characteristics that allow for independent management of inner and outer spring dynamics. This design minimizes coil bind risk at maximum valve lift and reduces harmonic resonance, providing superior damping compared to single-spring alternatives. The engineered spring rate and preload are optimized to ensure accurate valve seating velocity and consistent lift dynamics, preserving the integrity of cam lobes and rocker arms.

Engine builders working on high-RPM performance engines will find this spring particularly beneficial, as it is compatible with common small-block and modern engine platforms. Its compact footprint does not compromise load capacity, making it an excellent choice for those looking to maximize horsepower potential in street-strip or competition setups.