Not for '00-'09 RF-4 twin cam engine.
For all RFS engines 400-560 cc
Includes:
• 2x CrSi Valve Springs
• 2x Titanium Retainers
• 2x H.T. Steel Basewashers
• 2x Black Diamond™ Valves
- Stainless steel conversion kits include only what’s needed to convert your head to the long-life stainless steel Black Diamond™ or White Diamond® intake valves
- Extend the life of the valve train and intake components by as much as 4x over the OEM titanium parts
- Valves are designed to not only offer the best life span over OEM, but also designed to flow and perform better than OEM components
- Components are created using Finite Element Analysis (F.E.A.) software, as well as proprietary camshaft analysis and spring design software to ensure consistent performance and accurate designs
- Specifically designed and engineered for each application
- Made in the USA