My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Kibblewhite 40-40925 Black Diamond Stainless Steel Engine Valve

Part of: Kibblewhite Black Diamond Stainless Steel Engine Valve

Other options in this family: Kibblewhite 82-82255 Kibblewhite 82-82258 Kibblewhite 82-82312 Kibblewhite 40-40921 Kibblewhite 20-20108

Manufacturer

Picture for manufacturer Kibblewhite

Part Number

40-40925
8 reviews
Sale Price

$18.17

In Stock (6)

delivery box

Usually delivered within 2 days

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Kibblewhite 40-40925 Black Diamond engine valve is a high-performance stainless steel valve engineered for superior durability and flow characteristics. Each valve is precision-designed using Finite Element Analysis software and flow-tested on computerized benches to ensure optimal performance.

Black Diamond Coating Technology:

  • Advanced German coating process penetrates .002" deep with .0002" surface buildup
  • Significantly reduces friction and wear compared to traditional chrome or nickel plating
  • Enhanced corrosion resistance for extended valve life
  • Superior wear properties in high-temperature, high-stress environments

Design Features:

  • One-piece forged construction for maximum strength and reliability
  • Lightweight design reduces valvetrain mass and improves high-RPM performance
  • Optimized valve profile for excellent flow characteristics
  • Premium stainless steel material withstands extreme combustion temperatures

Kibblewhite Precision Machining Inc. (KPMI) is known for manufacturing race-quality valvetrain components that meet the demanding requirements of performance and racing applications. This Black Diamond valve combines advanced metallurgy with precision engineering to deliver professional-grade performance and longevity.

Great price. Great delivery time. Only thing that was bad was the shipping status, never transferred over to shipped after it said departed to warehouse, then arrived at my door so I was surprised when it arrived. Overall amazing and will be shopping again!

Xx

Good price,good product , customer service was on the ball, but shipping took a little bit

Clean site, great selection and beautiful products.

First time using this business and will continue if all goes well, excited

Great

Easy process to find and order my new seat pedestal. Delivery was faster than expected and the seat is repaired and working great. Thanks for the ease with your the online ordering process. Best, Bob

Great price .

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy