20-4194 Black Diamond Intake Valve Hd Shovelhead 78 83
20-4194 Black Diamond Intake Valve Hd Shovelhead 78 83
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20-4194 Black Diamond Intake Valve Hd Shovelhead 78 83
Elevate the performance of your Harley-Davidson Shovelhead with the 20-4194 Black Diamond Intake Valve. Designed specifically for models from 1978 to 1983, this valve is engineered to deliver unmatched durability and efficiency.
Key Features:
- Innovative Black Diamond® Technology: Each valve undergoes a special German process, with a depth impregnation of .002” and a surface buildup of .0002”, enhancing wear properties.
- Superior Corrosion Resistance: The Black Diamond® process offers resilience against corrosion and wear, outpacing traditional chrome and nickel platings.
- Lightweight and Strong: Crafted from one-piece forgings, these valves are designed to reduce unnecessary weight while maintaining exceptional strength.
- Optimized Flow Characteristics: The unique profiles of the valves ensure excellent airflow, contributing to improved engine performance.
Benefits:
- Enhances engine efficiency and power output.
- Reduces friction for smoother operation and longer lifespan.
- Ideal for high-performance builds or restoration projects.
Use Cases:
- Perfect for custom builds focusing on performance and reliability.
- An essential upgrade for restoring vintage Shovelhead models.
- Ideal for riders looking to enhance their bike’s overall performance.
Transform your riding experience with the 20-4194 Black Diamond Intake Valve. Experience the difference that advanced engineering makes in your Harley-Davidson Shovelhead.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

