KPMI Black Diamond Intake Valve - Harley Twin Cam 88-103
About KPMI
Kibblewhite Precision Machining supplies valves, valve springs, guides and complete top-end kits used by professional V-twin engine builders. Its black diamond valves and spring kits are a standard specification on high-lift cam builds.
The KPMI Black Diamond intake valve for Harley Twin Cam 88-103 engines is engineered to enhance the performance and longevity of your V-twin. Built as a one-piece forged stainless steel component, it's designed to withstand the demands of high-performance applications.
Why riders pick this
- German Black Diamond impregnation (.002" depth)
- Reduces friction and improves wear resistance
- One-piece forging with optimized flow profiles
- Lightweight stainless steel construction
- Superior corrosion protection
Optimizing your Twin Cam engine starts with robust internal components. This KPMI Black Diamond intake valve features a proprietary German impregnation process that hardens the valve surface to a depth of .002 inches. This advanced treatment significantly improves wear resistance, reduces friction, and offers superior corrosion protection compared to traditional chrome or nickel-plated valves.
Advanced Design for Twin Cam Performance
- German Black Diamond impregnation process for .002" depth hardening
- Reduced friction and improved wear resistance over plated valves
- One-piece forging with optimized flow profiles for better engine breathing
- Lightweight stainless steel construction to reduce valve train inertia
- Built to endure the demands of high-performance Twin Cam engines
Build a Stronger Twin Cam
Whether you're refreshing your top end or building a performance monster, KPMI Black Diamond intake valves provide the reliability and durability you need. These valves are a smart investment for any Twin Cam owner looking to prevent premature wear and maintain peak engine efficiency. Always verify fitment with your specific model year before ordering to ensure perfect compatibility.
Specifications
- Brand: KPMI
- Manufacturer Part #: 20-20323R
- Length: 2.7 in
- Width: 5.25 in
- Height: 1.95 in
- Weight: 0.2 lbs
Common questions
What Twin Cam engines does this intake valve fit?
This KPMI Black Diamond intake valve is designed to fit Harley Twin Cam 88-103 cubic inch engines from 2005-2010. Please confirm your specific model year before purchasing.
How does Black Diamond compare to chrome-plated valves?
Black Diamond impregnation offers superior wear resistance, lower friction, and better corrosion protection than traditional chrome or nickel plating because it's a deep surface hardening process, not just a coating.
Is this valve a direct replacement for my stock Twin Cam intake valve?
Yes, this KPMI Black Diamond intake valve is engineered as a direct replacement for stock Twin Cam intake valves, offering improved durability and performance through the Black Diamond process.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | KPMI |
| TYPE | Engine |
| SKU | 191-17024 |
| WEIGHT | 0.2 lb |
