I was wondering if it was possible to put a 2004 350z automatic engine in my manual 2005 and if it is possible can y’all tell me what exactly I need.

 

If they are both DE's then it will work, but if one is a DE and the other is a Rev-up then hope.

 

Auto to manual doesn't matter.

 

If you're just using the engine and the engine alone. It should be a direct replacement assuming it is the same model of VQ.

If you choose to go with a different model engine like a HR or rev up or DE if you have a different type. You will need a ECU, wire harness and depending on which possibly another engine mount.