Their is this throttle body but I question if its needed as the 4.0 throttle body is a good upgrade.

A bored out 4.0 throttle body to 63mm the stock 4.0 is 52mm or 55mm if I remember the 2.5L is 48mm I think.

I have heard it can cause Idle problems being a 63mm

http://www.ebay.com/itm/Jeep-62mm-63mm-4-0L-2-5L-1991-04-Ported-Throttle-Body-/370322497378?pt=Motors_Car_Truck_Parts_Accessories&hash=item5638f0df62&vxp=mtr

 

The rockers from the 88 89 90 91 92 93 94 95 models do not fit the 98 2.5??

 

As long as they are made for the AMC 150 2.5L you are fine that engine has not changed in all those years.

It was a carbureted engine at first then they modified it for fuel injection.

I would call and make sure they are correct as you can see in the pic that is them and they fit.

With the removal of the Big (S) air intake if you don't have A/C then its an easy change over in HOT Arizona A/C is a must.

 

The AMC 2.5 liter four-cylinder engine

http://en.wikipedia.org/wiki/AMC_straight-4_engine

http://www.allpar.com/mopar/amc-25.html

 

If it fits the 2.5L Jeep Wrangler 1997 to 2002 it should fit a 1997 to 2002 Dakota 2.5L

 

is there a different 2.5 that is also compatible with a 2.2?? because im finding roller rockers for another 2.5 engine from those years i stated earlier, they dont look the same so im wondering if theres another engine idk about

dodge daytona shelby 2.5 is conflicting with some of my searches, also says its compatible with dakota equipped with 2.5's

 

So i ordered some .060 over pistons, and i called the machine shop, gonna run me $193 - $238 to bore it, i do like the idea of the roller rockers and banks exhaust headers, but those mods will have to wait until After my surgery, im doing the bare minimum at the moment

 

You should at least get the 4.0 throttle body and intake manifold mods done they are cheap and easy.

An 4.0 tb on ebay http://www.ebay.com/itm/96-97-98-99-00-01-JEEP-GRAND-CHEROKEE-WRANGLER-4-0L-THROTTLE-BODY-/200972158140?_trksid=p2054897.l4276


The key is to move all the sensors and iac with the iac chamber from the 2.5 onto the 4.0 and you will need to cut off the iac chamber tab easy to do just use a hacksaw if you don't cut it off it will not fit the intake manifold.

http://www.jeepz.com/forum/cj-yj-tj-jk/40424-2-5l-4-0l-throttle-body-swap.html

https://www.google.com/#q=4.0+throttle+body+on+2.5+yj

 

A Nice read by JP Magazine 4.0L throttle body for 2.5L

http://www.fourwheeler.com/how-to/en...1-dethrottled/

 

i will get the 4.0 TB as well, i forgot to mention that one


I ordered the .060 over pistons and i was sent Standard pistons, so i need to wait a week for the right ones, someone lied to me yesterday on the phone, so someone got chewed out today while i was on the phone... i got a good laugh out of it, he said the pistons hes sending me in a week are much better pistons, the standard ones they sent are "Sealed Power" pistons, i will let you guys know what the next ones are