KIBBLEWHITE Valve Spring Kit 80-80394

Stock valve springs impose limitations on your engine's performance ceiling and reliability under sustained high-RPM operation. The KIBBLEWHITE 80-80394 Kit elevates valvetrain durability through precision engineering and advanced materials, eliminating the weak points that compromise longevity in demanding applications. Whether you're building a race engine or refreshing a high-mileage head, these springs deliver the controlled, consistent performance your engine demands.

This kit addresses the root cause of premature valve spring failure: inconsistent fitment and inadequate material strength. KIBBLEWHITE's beehive design with variable-rate winding reduces destructive spring surge, while the included H.T. steel basewashers and OEM-compatible retainer shoulders ensure lateral stability. The result is a valvetrain that operates with minimal harmonics, reduced wear, and measurably extended service life.

• Beehive variable-rate wind
• Chrome Silicon wire with Vanadium/Nickel
• Gas nitrided finish
• Double shot peened
• H.T. steel basewashers included
• Precision spring shoulder fit
• OEM and KPMI retainer compatible
• Reduces spring surge harmonics
• Enhanced fatigue resistance
• Bolt-on installation