Crower 68441-16 Features:

Crower 68441-16 dual valve spring with 1.290 in. OD for high-performance valvetrain applications Spring pressure rated at 145 lb at 1.800 in. seat height and 366 lb at 1.200 in. nose height Coil bind height is 1.000 in. for setup verification in custom camshaft and engineered component kits Requires Super 7-degree keepers when used with Crower 86767-16 retainers for proper installation

Valve Springs Dual 1.290 145 Lb Seat, 366 Lb Features:

• 1.290 in. OD dual valve spring, compact high-load valvetrain control, performance-oriented for custom camshaft combinations and elevated engine speed ranges
• 145 lb seat pressure at 1.800 in. installed height, supports stable valve seating, improved control, and dependable spring load in demanding valvetrain setups
• 366 lb open pressure at 1.200 in. nose height, suited for higher-lift operation, stronger valvetrain management, and aggressive performance engine applications
• 1.000 in. coil bind height, helps define safe spring travel limits, supports precision setup planning, and aids compatibility in custom high-performance builds
• Designed for custom valve sizing and engineered component combinations, dual-spring configuration promotes reliable control for higher-rpm power-focused engines