GEN 5 Beehive Springs - .550 Lift (16)

The GEN 5 Beehive Springs - .550 Lift (16) by Brian Tooley Racing delivers precision valve spring performance engineered for high-RPM engine builds and forced induction applications. Designed for serious enthusiasts and professional engine builders, these dual-spring assemblies provide the lift characteristics and seat pressures required to maintain valve control under extreme conditions. This product exists at the intersection of reliability and peak performance, where factory springs fall short in boost or high-horsepower naturally aspirated engines.

Each set consists of 16 precision-wound beehive-profile valve springs with a .550-inch lift rating, engineered to maintain consistent seat pressure across the entire valve event without coil bind or loss of control. The beehive geometry reduces mass while optimizing spring rate consistency, a critical factor when operating at elevated RPM levels where traditional cylindrical springs experience harmonic instability. Brian Tooley Racing's manufacturing standards ensure repeatability between springs, minimizing variability across all 16 units—essential for balanced engine performance and longevity in forced induction or competition settings.

This spring set benefits engine builders, tuners, and platform enthusiasts pushing beyond factory power limits. Compatibility is engine-platform specific; verify your cylinder head's spring pocket diameter, installed height, and maximum lift requirements before installation. Professional installation is strongly recommended to ensure proper seating, preload, and valve-to-piston clearance validation—mistakes in spring selection or installation can result in catastrophic engine failure.