Kibble White Black Diamond Inlet valveRef : KIBW00236A / DS198971

Valve Black Diamond™ by Kibblewhite (manufacturer part no: 20-4194) — a monoblock intake valve designed for demanding vintage and touring engines. Made in the USA, it combines a stainless steel stem with a Stellite tip for enhanced durability and superior wear resistance.

• Treatment: special nitriding with a depth of 0.002" and a surface layer of 0.0002" to reduce friction and delay wear.
• Materials: monoblock stainless steel body, Stellite tip — better corrosion resistance than hard chrome or electrolytic nickel plating.
• Design: lightweight profile optimized for excellent flow, suitable for classic and touring cylinder heads.
• Compatibility: leaded and unleaded fuels; usable in cast iron or bronze guides with low tolerances for optimized oil control and heat dissipation.
• Technical specifications: tulip angle 23°, head diameter 1.950, stem diameter 0.3765 — application: intake.
• Origin: made in the USA.

Designed for vintage and touring motorcycles, the Black Diamond™ is aimed at builds where valve reliability and machining quality are crucial. Ideal for 1983 Harley Davidson 1340 models (Wide Glide, Low Rider, Super Glide II), it provides a solid foundation for those seeking a robust, precise, and long-lasting replacement part.