Kibble White Black Diamond Inlet valveRef : KIBW00149A / DS198806

Valve Black Diamond™ — KIBBLEWHITE (Manufacturer's reference: 20-20090)

Monoblock intake valve designed for demanding roadster engines. Stainless steel body with Stellite tip, treated with special nitriding (depth .002" and surface layer .0002") to enhance wear resistance and reduce friction. The head profiles have been machined to provide excellent flow characteristics while remaining lightweight, facilitating valve response and oil control in low-tolerance guides.

• Type: Intake valve, monoblock
• Treatment: Special nitriding + Stellite tip (.002" depth / .0002" surface layer)
• Tulip angle: 23°
• Dimensions: head diameter 1.585 (imperial 1.585) — stem diameter 0.3100
• Fuel compatibility: leaded and unleaded
• Guides: designed for cast iron or bronze low-tolerance guides — good oil control and thermal dissipation
• Origin: Made in the United States

Ideal for maintenance or refurbishment of cylinder heads on sportsters and roadsters: examples of common applications — Harley-Davidson XLH/XL 883 Sportster Hugger, Sportster and 883 R Roadster (2003, 883 cc). A valve designed to last and provide reliable dimensional stability under road riding conditions.