KIBBLEWHITE - 20-4171R - Intake Valve - Evolution
Description
Kibblewhite presents the 20-4171R intake valve for Evolution engines. This one-piece stainless-steel valve is stellite-tipped and undergoes a special nitrided process with a depth of .002" and a surface buildup of .0002". These features enhance its wear properties and reduce friction. The valve's resistance to corrosion surpasses that of hard chromium and electrolysis nickel-plating. Its lightweight nature, combined with excellent flow characteristics, provides optimal performance. The valve is compatible with both leaded and unleaded fuels and can be used in cast iron and bronze guides at close tolerances, ensuring maximum oil control and heat dissipation. Proudly made in the U.S.A., this valve belongs to the Black Diamond model and has a head diameter of 1.900", a stem diameter of 0.3107", a tulip angle of 28?, and a length of 4.420". Suitable for street riding, it is available for individual purchase.
Features
Specs
Frequently Asked Questions - KIBBLEWHITE - 20-4171R - Intake Valve - Evolution
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
