i know what you are talking about,you talking about the studs that are on the front of the engine, you want to remove them so you can use the metal plate and 2 smaller screws because of the oversize frame. yes the studs come out,got pliers?, grip the studs with pliers,larger ones are helpful,now grip it hard and turn counter clockwise,they will unscrew and come out.yes he can use pliers because he wont be useing those studs anymore,but if you want to you can double nut the studs and remove them that way to using to sets of pliers i think.