Kibblewhite White Diamond® Engine Valve is designed for riders and builders who want reliable valvetrain performance under high temperatures and demanding use. This exhaust valve is CNC-machined from a one-piece forging (EV8 stainless steel or Inconel-751, depending on application) and finished with a premium hard-chrome plating to help deliver excellent wear resistance and consistent operation.
If you’re rebuilding a head, refreshing worn valvetrain components, or aiming for improved durability, a high-quality valve is critical for maintaining compression, reducing premature wear, and keeping performance consistent over time. The White Diamond® series focuses on precision manufacturing and a robust surface finish to better handle the heat and loading typical of exhaust-side operation.
Key features:
✅ CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751
✅ Electroplated with a 360° anode for an even, high-grade hard chrome finish
✅ Made in the USA
Benefits of use:
🔹 Durable construction designed for demanding engine conditions and high exhaust heat
🔹 Hard-chrome plated surface helps improve wear resistance for longer service life
🔹 Precision fitment helps support smooth, consistent valvetrain function during rebuilds
Technical specifications:
📌 Application: Exhaust
📌 Head diameter: 28.00 mm (1.102")
📌 Stem diameter: 5.00 mm (0.1956")
📌 Tulip angle: 20°
📌 Material: Stainless Steel
📌 Units: Each
Why choose this product?
⭐ Premium Kibblewhite quality with precision CNC machining and proven materials
⭐ High-grade, evenly applied hard chrome finish for dependable wear performance
⭐ Note: requires the use of a Kibblewhite spring kit for correct setup
