o2 sensor question

[94redranger]

I just got new o2 senors in my 94 4.0. I've decided to rebuild it and hop it up a little by using '94 pistons with '95-'97 heads. So along with that I need to buy headers for a '95-'97. Question is will my o2 sensors from my '94 fit in the o2 sensor fitting on '95-'97 headers?

 

[vaderj]

If they dont fit, you can either drill and tap if the bung is to small, or mod a hydraulic fitting (drill out and tap) if the bung is larger than the sensor