Kibblewhite Black Diamond Engine Valve
Kibblewhite Black Diamond Engine Valve
Available in stock (6)
-
Estimated delivery: Feb 06 - Feb 10
About this product
About this product
Upgrade your engine's performance with the Kibblewhite Black Diamond™ Engine Valve. This high-performance valve is engineered for superior flow, reduced friction, and exceptional durability, ensuring optimal engine efficiency and longevity. Built to exacting standards in the USA, the Black Diamond valve delivers the reliability and performance you demand.
Description
The Kibblewhite Black Diamond™ valve is CNC machined from a one-piece forging of EV8 stainless steel, providing a lightweight yet incredibly strong component. Its optimized profile enhances flow characteristics, maximizing engine performance. A unique German infusion process penetrates the valve to a depth of 0.002" with a 0.0002" surface build-up. This treatment significantly improves wear properties, reduces friction, and offers superior corrosion and wear resistance compared to traditional chrome and nickel electrolysis plating. Designed with Finite Element Analysis (F.E.A) software and tested on a computerized flow bench, each valve guarantees optimal performance. The stem is coated with black nitroneg for enhanced durability and reduced friction.
Features & highlights
- CNC machined from one-piece forgings of EV8 Stainless Steel for superior strength and durability.
- Lightweight design with optimized profile enhances flow characteristics for improved engine performance.
- Infused with a special German process that improves wear properties and reduces friction.
- Provides resistance to corrosion and wear that is superior to chrome and nickel electrolysis plating.
- Designed using Finite Element Analysis (F.E.A) software and tested on a computerized flow bench for optimal performance.
- Stem is coated with black nitroneg for enhanced durability and reduced friction.
- Proudly made in the USA.
Technical specifications
- Brand: Kibblewhite
- Part Number: 40-40925
- Application: Exhaust
- Head Diameter: 27.00 mm
- Length: 3.655"
- Material: Stainless Steel
- Stem Diameter: 5.00 mm
- Tulip Angle: 10°
Important to know
Ensure compatibility with your specific engine model before installation.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
KIBBLEWHITE
40-40925
Valve
10°
5.00 mm
27.00 mm
3.655"
Exhaust
Stainless Steel
Each


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

