KPMI Black Diamond Valve Kit 20-22500 for Harley-Davidson Shovelhead 80 1978-1983
$220.00
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KPMI Black Diamond Valve Kit 20-22500 for Harley-Davidson Shovelhead 80 1978-1983
$220.00
The KPMI Black Diamond Valve Kit is precision-engineered for Harley-Davidson Shovelhead 80" models from 1978 to 1983. Each valve is manufactured from lightweight, high-strength one-piece stainless steel forgings designed with advanced Finite Element Analysis and computer-tested flow profiles to optimize engine performance.
Featuring KPMI's specialized German surface treatment, these valves provide outstanding wear resistance, reduced friction, and superior protection against corrosion compared to standard chrome or nickel plating.
Key Features
| Brand | KPMI |
| Manufacturer Part Number | 20-22500 |
| Product Type | Intake/Exhaust Valve Kit |
| Material | Black Diamond™ Stainless Steel |
| Coating | Black Nitroneg |
| Quantity | 2 Intake, 2 Exhaust |
| Intake Head Diameter | 49.5 mm |
| Intake Stem Diameter | 9.6 mm |
| Intake Tulip Angle | 23° |
| Intake Overall Length | 98.7 mm |
| Exhaust Head Diameter | 44.5 mm |
| Exhaust Stem Diameter | 9.6 mm |
| Exhaust Tulip Angle | 29° |
| Exhaust Overall Length | 96.8 mm |
| Size | Standard |
| Estimated Shipping Weight | 0.6 kg |
Highlights
- One-piece forged stainless steel construction for maximum strength and reliability
- Black Diamond specialized German surface treatment reduces friction and extends wear life
- Computer-tested valve profiles designed for optimized flow characteristics
- Standard replacement sizing for direct fitment
Compatibility
Compatible with Harley-Davidson Shovelhead 80" models manufactured from 1978 to 1983.
What's included
- 2 x Black Diamond Stainless Steel Intake Valves (Stock Head Diameter)
- 2 x Black Diamond Stainless Steel Exhaust Valves (Stock Head Diameter)
Frequently asked questions
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