The trinity head has to use trinity domes. That is ok if you plan on staying with stock stroke. If you ever do a stoker or get custome domes then your going to have to have trinity make them. Other wise if you get a noss head, cool head, vitos hemi head, paul turner, or mod quad head they all use the same design domes. I would get a noss head because you can get them in colors, you dont have to get longer head studs, and they use the universal dome. Plus BHQ memebers get 10%off.
www.nossmachine.com