Crower 68183-24 Features:

Single valve spring set, 24-piece; 1.160 in. nominal O.D., 1.145 in. measured outer O.D., 1.920 in. free length, and 0.161 in. wire diameter. Premium silicone construction with purple color code; heavy-duty single-spring design without damper for performance valvetrain applications. 245 lb/in spring rate with 73 lb seat pressure at 1.550 in. installed height and 205 lb open pressure at 1.000 in. for high-RPM valve control. 0.895 in. coil bind height helps support high-lift camshafts, reduce valve float, and upgrade stock valvetrains for racing and performance use.

Valve Springs Single 1.16 1.160 In. Od, 1.920 In. Features:

• 1.160 in. O.D. single valve springs, set of 24, premium silicone wire for high-rpm valvetrain control
• 73 lb seat pressure at 1.550 in. installed height, 205 lb open pressure at 1.000 in. for high-lift cam support
• 245 lb/in. spring rate with 0.161 in. wire diameter to reduce valve float in performance applications
• 0.895 in. coil bind height and 1.920 in. free length for added clearance in high-revving valvetrains
• Purple heavy-duty single springs for 24-valve 6-cylinder performance builds; retainer-compatible upgrade path