KIBBLEWHITE Single Spring Kit 40-41120

Extensive R&D on all applications to provide high-performance components that last longer than OEM, Black Diamond™ valves are one-piece forgings made from 21-4N high-performance stainless steel, Trademarked Black Diamond treatment provides a stem that has a longer life capacity, Tensilite® titanium valves are cut from solid U.S. milled titanium bar stock, Bar is cut, forged and then the valve stem is pulled from the forging and cross-sectioned and reduced, then given a final grinding and machining before being encased in a hard chromium nitride (CRN) shell, Valve guides are made of C630 nickel-aluminum bronze, Super-clean silicon wire used in valve springs is ground, not shaved, and X-rayed at regular intervals to check for flaws, Titanium retainers are made from 6AL4V titanium alloy; designed to be the strongest and lightest for ultimate performance, Keepers not included; use OEM keepers and bases or Kibblewhite keepers and bases, Valves and guides are sold each; spring kits come complete for one motor and include instructions, All components made in the U.S.A.