1.290 RPM Series Valve Springs Beehive (16)

The 1.290 RPM Series Valve Springs Beehive from PAC Racing Springs is designed for engine builders and performance enthusiasts seeking high-RPM reliability and consistent valve control. This 16-piece set is engineered to support both naturally aspirated and forced-induction engines, ensuring optimal performance across various applications.

These beehive-profile springs feature a conical design that reduces coil binding while maintaining stiffness and load consistency, offering a significant advantage over traditional cylindrical springs. The lightweight construction minimizes inertial losses, allowing for faster valve acceleration and supporting aggressive valve timing and duration. Additionally, the conical geometry helps reduce harmonics and vibration transfer to the cylinder head, enhancing component longevity under high-RPM conditions.

Ideal for applications such as LS, small-block Chevy, and Ford Windsor engines, these springs are perfect for street stroker builds, circle-track competitors, and bracket-racing powerplants. Each spring in this set is individually inspected and matched for load rate, ensuring consistent performance across all cylinders and eliminating the dead spots associated with mismatched sets.