Kibblewhite-Spring Only Kit, High Performance, .425" Lift, Kawasaki®, ZX-14™, 2006-2011
KPMI® High Performance Spring Only kits are designed to work with the
OEM retainer, and in most cases with the OEM spring base and /or shim.
In many cases we do offer a lightweight, high performance FEA designed
retainer as an option. All KPMI® valve springs are designed in house
using sophisticated, proprietary design and simulation software
programs. Our engineers, software, and over 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 KPMI® to supply you with the
best possible valve.
NOTE: Springs are compatible with OEM Retainers & Basewashers
and can be ordered individually, however KPMI® reccomends the 40-40291
Retainer for increased durability over the OEM.
Springs are compatible with OEM Retainers &
Basewashers and can be ordered individually, however KPMI reccomends the
40-40291 Retainer for increased durability over the OEM