Dual Valve Springs - GM LS (16)

PAC Racing Springs Dual Valve Springs for GM LS are designed for serious engine builders and high-performance enthusiasts who require reliability in extreme RPM environments. These springs are ideal for applications ranging from street-strip builds to full competition engines, providing the necessary support for high-lift camshafts and aggressive valve events.

The dual-spring architecture of these valve springs ensures superior control over valve closure velocity and minimizes coil bind, which is essential when operating under high-stress conditions. By utilizing both an inner and outer spring, PAC Racing Springs achieves a progressive spring rate that maintains consistency across the entire valve lift window, effectively preventing surge and float.

These springs are particularly beneficial for LS1, LS2, LS3, LS7, LS9, and LSx derivative engines that are running aftermarket camshaft profiles exceeding 0.500" lift or featuring aggressive lobe separation angles. Professional engine builders and performance enthusiasts will appreciate the precision engineering and durability that these springs provide, ensuring optimal performance through countless heat cycles.