Most likely, no.
BH bolt pattern on the engine is different from AMC 2.5L to other AMC (i.e. 4.2L from '87)
Not for sure on this - but I think 2.5L Jeeps get the 904 auto transmission and 4.2L/4.0L Jeeps get the 999 auto transmission?
i gotta cj with an '80 258 block. it came with an '85
999/d300. i bought an '81 904/d300, and put it in for a while. my manual says the 904 only came on a 4 popper (???).
someone said the 904 has (???) one less clutch pack..
i have also seen magazine 6/8 cyl jeeps with 904s. -
yup. i are confused.