Prevent valve float and engine damage with Pac's dual valve springs designed to maintain consistent pressure between 157 and 440

Enhance engine performance and durability with precision-engineered dual valve springs designed for high lift applications. Featuring a 1.540" outer diameter

Enhance engine performance with valve springs engineered to deliver 215 lbs of force at 1.811" installed height, ensuring precise valve

Enhance engine performance and reliability with valve springs engineered to maintain precise tension at high lift. These beehive valve springs

Enhance engine performance and durability with Pac’s triple valve springs designed for precise control under high lift conditions. Featuring a