• Welcome to the new NAXJA Forum! If your password does not work, please use "Forgot your password?" link on the log-in page. Please feel free to reach out to [email protected] if we can provide any assistance.

99 4.0 swap into 91

suthernoutlaw

NAXJA Forum User
I need some help, i searched cant find what i need. i just got a 99 4.0 engine with 26,000 miles on it. i got it for $350, so im hopin i can use it. so how hard is it to put a 99 longblock into a 91, im usin my intake and hopefully my distibutor will work in it, just wonderin if my motor mounts and everything will bolt up on the 99 4.0. the 91 is also a 4.0.
 
I believe you will have to swap out alot of the computer stuff as well, if not all of it. I think teh computers are completely different, OBD1 vs OBD2... I think that switched sometime around 96... but not 100% sure
 
Back
Top