KIBBLEWHITE Intake Valve - Big Twin 20-4101

Intake valve longevity and flow efficiency are non-negotiable in high-performance Big Twin engines. The KIBBLEWHITE 20-4101 combines precision metallurgy with a specialized nitriding process to deliver superior wear resistance and reduced friction—keeping your engine reliable across thousands of heat cycles. Whether you're running a stock rebuild or a tuned application, this valve handles leaded and unleaded fuel with the durability and performance you expect from a precision-engineered component.

• One-piece stainless steel
• Stellite-tipped construction
• Nitrided process (.002" depth)
• Reduced friction design
• Corrosion resistant finish
• Superior wear properties
• Lightweight valve profile
• Excellent flow characteristics
• Compatible with cast iron guides
• Compatible with bronze guides
• Close-tolerance fit
• Maximum oil control
• Enhanced heat dissipation
• Leaded fuel compatible
• Unleaded fuel compatible
• Made in USA
• MPN: 20-4101