All O2 sensors the same on 80's?

[Loppy]

We're trying to figure out if the O2 sensors off my 93 are the same as 94-97. Anyone know real quick? Thanks!

 

[ShawnTRD]

94 NGK part # is 24044 (before and after cat)
97 NGK part # is 24557 before and 24553 after

So I would say no

 

[sdbrassfield]

They are different on the 3FE also...before and after cats (cyl 1-3) -vs- cyl 4-6).

 

[cruiserdan]

Three versions, not interchangeable:

91-92, left & right, both pre-cat
93-94, left & right, both pre-cat
95-97, front pre-cat, rear post-cat