engine swap

im wanting to swap a 98 4.0 aw4 into a 96 with a aw4. is there any problems i should know about or is it pretty straight forward?

Just use the long block to simplify the swap. You already have the more desirable intake on the 99. It's easier to swap without the manifolds anyway.

so your saying swap but use the 96 manafold

long block

http://en.wikipedia.org/wiki/Long_block

You should have no problems with the swap. You might/not have the temp gauge sender(only for the cluster gauge, the cts in the t-stat housing sends the ecu the temp in the <96 and the ecu and gauge the temp in the later 96+) in the back of your 96 head. The 98 definitely doesn't have the port and the early 96's do--one reason to maybe keep the 96 head and put it on the 98 block. I'm sure there's a way around not having the port, but having the sensor--maybe it's not so hard to tap a head in the same spot or tapping another port in the t-stat housing.

When I put the 98 motor in my 89 jeep I just rerouted the sensor to a T I put on the thermostat housing. it is not worth swaping the heads just for that sensor if you dont have to for another reason.

awesome thanks for the help guys