The 2.3 Sohc is about 1 1/2 inches longer than the 2.0 Sohc or Dohc. The heads don't fit There are very little of the parts on the 2.3 that will fit the 2.0 or the other way around.
There is a head that can be made to fit which is from a Volvo

Have a look here http://www.mnsportcompacts.net/forum...73&mode=linear