KPMI Exhaust Valve 20-4195S for Harley-Davidson Shovelhead 74 1966-1977
44.21mm / 1.780”
$54.00
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KPMI Exhaust Valve 20-4195S for Harley-Davidson Shovelhead 74 1966-1977
$54.00
KPMI Black Diamond stainless steel exhaust valves are precision-engineered one-piece forgings designed to deliver optimal strength, lightweight performance, and superior flow characteristics. Developed using Finite Element Analysis software and verified on flow benches, each valve profile ensures exceptional engine efficiency.
These high-performance valves undergo a specialized surface treatment impregnated to a depth of 0.05 mm, significantly improving wear resistance and reducing friction. The resulting finish provides outstanding defense against corrosion and wear that outperforms standard chrome and nickel electrolysis plating.
Key Features
| Brand | KPMI |
| Type | Exhaust |
| Material | Black Diamond™ Stainless |
| Coating | Black Nitroneg |
| Stem Diameter | 9.6 mm |
| Overall Length | 97 mm |
| Tulip Angle | 29º |
| Remarks | Oversize |
| Quantity | Pkg. of 1 |
| Weight | 113 g |
Highlights
- One-piece forged stainless steel construction for maximum strength
- Specialized Black Diamond surface treatment for reduced friction and extended wear life
- Optimized profile developed with Finite Element Analysis and computerized flow testing
- Superior corrosion resistance compared to chrome and nickel electrolysis plating
Compatibility
- Harley-Davidson Shovelhead 74" (1966–1977)
- Harley-Davidson Shovelhead 80" (1978–1983)
Frequently asked questions
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