Fj20e is the non turbo model
Fj20et is the Turbo model
but I am lead to believe that most of the gaskets etc are the same anyways. Just so you know the Fj20 Silvia is becoming Very very rare now so keep hold of them. If you need a rebuild kit, send an Email to the link for Lee and he will sort you out. He will also take off the Tax as it will be exported. That engine in Australia went in the Nissan S12 Gazelle 2.0 Turbo 83/86