KIBBLEWHITE Exhaust Valve - XL 20-4168

Exhaust valves are where combustion forces meet component durability—and failure here costs you performance and engine reliability. The KIBBLEWHITE XL 20-4168 combines precision stainless-steel construction with a nitrided stellite tip to deliver exceptional wear resistance and corrosion protection across extended racing and street applications. Whether you're running leaded or unleaded fuel, this valve maintains tight tolerances in cast iron and bronze guides, maximizing heat dissipation and oil control when it matters most.

• One-piece stainless steel
• Stellite-tipped design
• Nitrided surface (.002" depth)
• Superior wear resistance
• Corrosion-resistant coating
• Leaded/unleaded compatible
• Cast iron guide compatible
• Bronze guide compatible
• Close-tolerance fit
• Enhanced oil control
• Lightweight construction
• Optimized flow profiles
• Made in U.S.A.
• MPN: 20-4168