Shot in the dark but maybe ask this guy… http://cgi.ebay.com/ebaymotors/1969-Mustang-Shelby-Cougar-Toriono-428-cj-Motor-REBUILT_W0QQitemZ140086281490QQihZ004QQcategoryZ140684QQssPageNameZWDVWQQrdZ1QQcmdZViewItem