xjdanspringer

ok the other day the motor went.... R.I.P. 4.0L

but anyway i found a motor and its goin for $200 the guy would sell me.... its the same motor but its out of a 96 not a high output just a regular... would that go together well with computer and all that fun stuff like that? because i have no idea id hate to buy it and i cant put it in...

xj_maniac_newb

please somebody correct me if im wrong, but i think that its probably a H.O. if it came out of a 96

95THORxj

if its a 96 motor it would be an HO.

troy fritz

All 4.0s after 90 are HO.If its going in the 87 then you will need the computer.

xjdanspringer

o alright well would it still fit and work?

xjdanspringer

where can i find a computer at least a used one?

troy fritz

Absolutely.And you'll enjoy the extra power.

95THORxj

big differance. U will def notice.

xjdanspringer

ok well do u think a 94 4.0L jeep grand cherokee computer fit and work?

xjdanspringer

and also will the old wiring plug into the new?

95THORxj

not to sure about wiring. but someone will chime in.

xjdanspringer

well i just took some pics of my wiring in the 87 motor ill post them as soon as my camera charges bk up

JeepingDan

Here's some messages BlueXj sent me when I did my 94 to 88 engine swap.

use the Renix head and manifolds and you will have little or no computer problems. Also retain the Renix CPS too.

Port shapes don't match well but most important the two types of throttle bodies are incompatible. The signals will just confuse the Renix computer It may start but will not accelerate or decelerate and idle would be irratic.

So it will work if you use the renix throttlebody and intake with a renix head.