KPMI Black Diamond Valve 20-20920 for Harley-Davidson Evo 1984-1999
$72.00
Skip to product information
KPMI Black Diamond Valve 20-20920 for Harley-Davidson Evo 1984-1999
$72.00
KPMI Black Diamond exhaust valves are engineered from one-piece stainless steel forgings designed with Finite Element Analysis software to deliver high strength and superior flow characteristics. Each valve undergoes a specialized German impregnation process that significantly improves wear properties, reduces friction, and offers corrosion resistance surpassing standard chrome or nickel electrolysis plating.
Precision-profiled and tested on computerized flow benches, these lightweight performance valves are built to withstand high-stress operating environments. They provide dependable valvetrain reliability for compatible Harley-Davidson Evolution and Twin Cam 88 engine applications.
Key Features
| Brand | KPMI |
| Part Number | 20-20920 |
| MPN | AV1650 |
| Valve Type | Exhaust |
| Material | Black Diamond™ Stainless Steel |
| Coating | Black Nitroneg |
| Head Diameter | 41.9 mm |
| Stem Diameter | 7.9 mm |
| Tulip Angle | 25º |
| Overall Length | 114.7 mm |
| Quantity | Pack of 1 |
| Product Weight | 0.1 kg |
Highlights
- One-piece forged stainless steel construction for maximum strength
- Specialized German surface impregnation improves wear resistance and reduces friction
- Profiles developed with Finite Element Analysis and computerized flow bench testing
- Resists corrosion and wear superior to chrome and nickel electrolysis plating
Compatibility
- Harley-Davidson Evolution (1984–1999)
- Harley-Davidson Twin Cam 88 (1999–2004)
Frequently asked questions
|