Prevent valve float and engine damage with Pac's dual valve springs designed to maintain consistent pressure between 157 and 440 lbs at 1.850" diameter. Engineered for a .650" lift, these springs ensure precise valve control under high-performance conditions. Discover how these dimensions and specifications optimize your engine's reliability and power.

Enhance engine performance and durability with precision-engineered dual valve springs designed for high lift applications. Featuring a 1.540" outer diameter and a load range of 145-465 lbs at 1.900" installed height, these springs deliver reliable valve control under demanding conditions. Discover how these springs optimize your engine’s responsiveness and longevity.

Enhance engine performance with valve springs engineered to deliver 215 lbs of force at 1.811" installed height, ensuring precise valve control under high lift conditions. Measuring 1.031" outer diameter, these Beehive springs offer superior stability and durability. Explore the full description to understand how they optimize your engine’s efficiency.

Enhance engine performance and reliability with valve springs engineered to maintain precise tension at high lift. These beehive valve springs deliver a consistent 440 lbs of force at 1.950" installed height, ensuring optimal valve control under demanding conditions. Explore how this specific design and dimension supports superior engine responsiveness.

Enhance engine performance and durability with Pac’s triple valve springs designed for precise control under high lift conditions. Featuring a 1.645-inch outer diameter and a spring force of 801 lbs at 2.050" installed height, these springs maintain valve stability during aggressive camshaft operation. Explore how this engineered solution supports higher RPM and reliability.