Kibblewhite White Diamond Inconel Exhaust Valve Oversize

The Kibblewhite White Diamond Inconel exhaust valve line gives engine builders and riders a durable, heat-resistant replacement exhaust valve (also called an engine exhaust valve) for street and performance use. These oversize valves keep the standard-size stem and replace it with a larger head. That adds flow area while the valve still works with the stock valve train layout.

Key Features:

• Inconel construction: Inconel is a heat-resistant superalloy that holds its strength at high temperatures. It suits the thin stems on exhaust valves that run hot.
• CNC-machined one-piece forging: Light, strong valves with profiles designed for good flow.
• Hard chrome finish: Inconel cannot be black nitrided, so each valve is electroplated with a 360-degree anode. This produces an even, high-grade hard chrome coating.
• Precision engineering: Kibblewhite uses modern CNC machining and 3-D computer modeling. Profiles are developed with finite element analysis and tested on a computerized flow bench.
• Oversize head: Increases exhaust flow potential over a standard-size head.
• Made in the USA by Kibblewhite Precision Machining.

Keepers are not included, so reuse your OEM keepers and bases. Kibblewhite Precision Machining is known for valve train components built for reliability and performance. Choose the correct variant for your application from the options on this page.