Black Diamond Heavy Duty Valve Spring Set 1970-95 Kibblewhite valve springs are designed using sophisticated, proprietary design and simulation software. Perfect, heavy-duty replacements for your 1970-1995 Airhead. Kibblewhite valve springs are made out of super-clean chrome-silicone valve spring wire and go through a heat treatment, stress-relief, and shot-peening process. Set of four.
