there are no pushrods-----sean hyland is the only person ive seen that makes cams for the 4.6L--but its not as simple as just putting them in---youll have to get different valves---probably different springs or the 5.4L springs and have a head that will flow enough to take all of that extra lift and duration---basically what you need is the svo heads or a nice set of 5.4L heads or ported pi heads----and that will cost you roughly 2000 and the cams are 800 plus the install if you have someone do it---then your looking at 4000-5000 which would be stupid considering your only gonna pick up about 70-80hp at best---it would be cheaper to run nos or a supercharger and you would see better gains......