Crower 68851-1 Features:

Crower 68851-1 next-generation premium dual valve spring, 1.386 in. OD, sold individually 2.440 in. free length with .180 in. outer wire diameter and .135 in. inner wire diameter Premium silicone construction, damperless design, and no color coding for identification Cycle-tested and race-proven for increased RPM capability and high-lift camshaft applications

Valve Springs Next Genera Premium Dual 1.386 In. Od Features:

• 1.386 in. OD dual spring, 2.440 in. free length, premium silicone construction for stable installed geometry and consistent valvetrain control
• .180 in. outer wire and .135 in. inner wire design for balanced spring rate, added control, and high-lift camshaft compatibility
• Damper-less dual spring configuration helps reduce destructive valve float while supporting increased RPM performance in demanding valvetrain setups
• Cycle-tested, race-proven processing and materials engineered to resist coil bind issues when installed with .050 in. minimum coil clearance
• Sold individually for custom spring selection, no color coding for a clean appearance and straightforward part matching during assembly