hollander is wrong-ish about the engine swap, some later aplications use a motor mount with 4 bolts in a square pattern on the side of the block and those bosses are not on the earlier blocks so you can go one way but not the other in some rigs but it does not apply to durangos, the triangle bolt pattern is still on the later block so no issue putting it in an older one.
Correct. I used a 97 truck block for my build in a 2002 Ram Van. Was told by junk yard it would not work bc of motor mounts, but had no trouble. Of course I looked at them pretty close before building it.
