Check out this link

http://cmgonline.com/news/2011/06/21...ig-twin-heads/

 

Harley has been talking/working on options toward liquid cooling due to emmisions etc for years. I feel if they can retain the Harley sound, looks and not having a radiator the benefits would be a plus. This article covers the goals well.

 

A lot of us have already discussed it in depth. It would definitely help to cool the heads, the hotspot, where HD had trouble getting the twin cam to market. I guess they could evaluate what the asians are doing to reduce the size of the radiators.
Personally, I hope they don't do it. But I don't have any ideas. I like the push rod layout too and don't want them to go overhead cam like Victory. Perhaps just doing the patent application will take the EPA eyes off for a few more years.

 

Tradition VS Evolution....