Kibblewhite High Performance Valve Spring Kit
Fitment:
-66-77 Harley-Davidson Shovelhead 74"
These Kibblewhite Valve Spring Kits are a dual spring setup and include HT Steel or Aluminum Retainers and HT Steel Spring Bases. Valve Springs good to .600" Valve Lift.
Kibblewhite Valve Spring Kit Includes:
-Kibblewhite Dual Valve Springs
-Kibblewhite Retainers (HT Steel or Aluminum)
-Kibblewhite Steel Basewashers*
-Kibblewhite Steel Valve Keepers
These Valve Springs are designed as an High Performance Valve Spring Kit. They allow up to .600" of Valve Lift (STD Setup is .550" of Valve Lift, Some Modification required for .600" Valve Lift Setup, Modification Instructions included).
*Please Note: These spring kits are designed to work with factory covers with no clearance issues. The basewasher is counterbored to fit a 0.665” outside diameter seal.*
All Kibblewhite valve springs are designed in house using sophisticated, proprietary design and simulation software programs. Kibblewhite engineers, software, and 75 years of experience enable us to determine critical characteristics including stress, natural frequency, system harmonics, and fatigue life. Our spring manufacturing partners are U.S based companies that are ISO certified. The Super-Clean Chrome-Silicon valve spring wire we use is traceable back to Kobe Japan where some of the best spring wire in the world is manufactured. Each spring goes through a rigidly controlled heat treatment, stress relief, and shot peening process. Combining our design, simulation, and manufacturing protocols with this premium quality valve spring wire allows Kibblewhite to supply you with the best possible valve springs period.
