Found these 3 searching the Dean Winchester/Elliot Ness tag on AO3:

Dean/Elliot (http://archiveofourown.org/works?utf8=%E2%9C%93&work_search%5Bsort_column%5D=revised_at&work_search%5Brelationship_ids%5D%5B%5D=956737&work_search%5Bother_tag_names%5D=&work_search%5Bquery%5D=&work_search%5Blanguage_id%5D=&work_search%5Bcomplete%5D=0&commit=Sort+and+Filter&tag_id=Eliot+Ness)

Thanks very much :)

This (http://biketest.livejournal.com/8021.html) by biketest is short but sweet :)

Thanks, that's perfect!