Different header heights on different app views

hey everybody,

i just figured out that it is not possible to have different header heights on different views! i am using

  <ion-nav-buttons side="left">...</ion-nav-buttons side="left">
  <ion-nav-buttons side="right"></ion-nav-buttons>...

is there a way to add a class or an id to make it unique? i need to have on two or three of my views an bigger header as on all the others?!?!

many thanks in advance!