
The Black Diamond™ valve kit by Kibblewhite meets the expectations of discerning motorcyclists for vintage, touring, and roadster models. Each valve features a surface reinforcement of .002” in depth with a finishing layer of .0002”, a treatment designed to improve wear resistance, reduce friction, and provide better corrosion resistance. Made in the USA, this kit is compatible with both leaded and unleaded fuels.
Designed to replace original parts on classic twin-cylinder engines such as the Harley-Davidson Softail 1340 (models FXSTS, FXSTC, FXSTB from 1999), this kit is aimed at restoration projects and engine overhauls where valve reliability and sealing precision are paramount. Ideal for engine maintenance campaigns, it provides the finish and durability expected by enthusiasts.
Manufacturer reference: 20-22600