I bought one of the cheap all aluminum radiators when I did my eFan conversion, and I am happy with mine. It was a direct bolt-in, and it cools better than the stocker. I ordered mine online from radiator barn, I think it was... It was on eBay as well (and I think eBay had a lower price than their site, so they gave me the lower price when i called); was something like $130 or $150... There's a post somewhere here on this site which has the line; do a search and you will find it. In my opinion, it was very well worth it (both the AR and the eFan).