Kibblewhite 20-22000 Black Diamond Stainless Valve Kit for Harley-Davidson Knucklehead

The Kibblewhite 20-22000 KPMI Black Diamond valve kit is precision-engineered for Harley-Davidson Knucklehead engines from 1936 to 1947. These premium stainless steel valves feature KPMI's proprietary Black Diamond coating, a specialized German impregnation process that penetrates .002" deep with a .0002" surface buildup for exceptional durability and performance.

Key Features:

• Black Diamond coating provides superior wear resistance compared to traditional chrome or nickel plating
• Reduces friction and offers excellent corrosion resistance for long-lasting performance
• Lightweight, one-piece forged construction for strength and reliability
• Profiles designed using Finite Element Analysis software for optimal flow characteristics
• Computer flow bench tested to ensure maximum performance
• Complete valve kit for Knucklehead 61ci and 74ci engines

This valve kit delivers the quality and engineering precision that vintage Harley-Davidson enthusiasts demand for proper restoration and performance builds. The advanced Black Diamond coating technology extends valve life while maintaining the authentic fitment required for 1936-1947 Knucklehead applications.