Upgrade your valvetrain for durability and consistent performance. The Kibblewhite Intake Stainless Conversion Valve and Spring Kit is built for riders who want a longer service interval and a more robust intake valve setup than typical OEM titanium components. By converting to forged one-piece stainless intake valves with matched springs and lightweight retainers, you reduce wear and help keep your head performing reliably over time.
This kit is ideal when doing a top-end refresh or when you want a dependable, long-life intake valve solution. Components are specifically designed for each application and developed using Finite Element Analysis (F.E.A.) along with proprietary camshaft and spring-design software—so the system works as a package, not as mixed individual parts.
Key features:
✅ Stainless steel conversion kit includes only what’s needed to convert to long-life stainless intake valves
✅ Forged one-piece White Diamond®/Black Diamond stainless intake valves for durability
✅ Chrome-silicon, heat-treated valve springs with ultra-light titanium retainers and hardened steel bases
Benefits of use:
🔹 Extends valvetrain and intake component life (up to 4x vs OEM titanium parts)
🔹 More reliable long-term sealing and performance for demanding riding and racing use
🔹 Purpose-engineered components for correct fit and controlled valve action
Technical specifications (highlights):
📌 Application: Intake
📌 Head diameter: 1.063 in / 27.00 mm
📌 Stem diameter: 0.1765 in / 4.50 mm
📌 Tulip angle: 15°
📌 Valve lengths: 3.000 in & 3.040 in
📌 Spring lift: 0.380 in
📌 Spring pressures: 39 lb seat / 86 lb open
Kit includes:
• 2x Outer valves (3.040" length)
• 1x Center valve (3.00" length)
• 3x Titanium retainers
• 3x Valve springs
• 3x Base washers
• 3x Red Viton® seals
Why choose this product?
⭐ Made in the USA with application-specific engineering
⭐ A proven upgrade path for riders seeking longevity over OEM titanium intake hardware
⭐ Convenient all-in-one kit for a correct conversion during engine service
