Valve Spring Kit - 0.600" Lift - 88"/96"/103" Twin Cam | Buell | XL | XR
Designed for its specific application, taking into account several critical parameters including; cam profiles, harmonics, natural frequency of the springs, valvetrain mass, required pressure, wire stress, fatigue life, and engine rpm, Progressively wound springs using Kobe super-clean, chromium silicon(CrSi) based wire that is heat treated and shot peened, Complete set for one engine, Made in the USA