KIBBLEWHITE Exhaust Valve 40-40656

Exhaust valves are mission-critical components that directly impact cylinder sealing, heat management, and engine longevity. The KIBBLEWHITE 40-40656 is engineered to handle extreme combustion temperatures and repeated thermal cycling without degradation, making it essential for high-performance and racing applications where reliability cannot be compromised. Choosing a precision-forged valve over inferior alternatives means fewer catastrophic failures and consistent power delivery across your entire rev range.

• CNC-machined one-piece construction
• EV8 stainless steel forging
• Black Diamond™ proprietary coating
• Multi-stage friction reduction
• Superior corrosion resistance
• Exceptional wear durability
• Made in the U.S.A.
• MPN: 40-40656