cherokeebaby

Hey guys I was wondering if you thought I could drop a straight six into my '85 Chief? I think that would be just enough power for me

COSXJFAN

Sorry to break it to you, but you'd be better off buying an XJ with a 4.0 in it already!! There is a lot of crap that has to go with a fuel injected engine swap, like the one you're referring to. ECU, TCU, fuel system...the list goes on and on!! Laters!!

okcjeeper

I think you can do anything you want to...Just have to make sure ya get all the electronics and such like ecm ya need. I dunno if I would do a RENIX straight six of if I would move up to the early say 91ish that had the HO motor..

cherokeebaby

Well the engine I have in it is done, finished. So I just want to swap out the engine, period. I would like more power but at this point I just want an engine that runs like it should. Could you tell me what the easiest swap would be if I decided to get a bigger motor or do you think I should just get a better working 2.8?

BlueXJ

I think that the 3.4L is a viable V6 to use in this application. Someone has done that swap on here but I can't remember who. Whowey knows a bit about which engines are a good match for your tranny and everything else. You might PM him if he doesn't chime in.

kilbrethj

carbed big block!!! haha (not really though)

cheapJeeper

I seem to remember reading on this site that the engine bay is shorter on the pre-4.0 Xj's, requiring work to the firewall for clearance when swapping in a straight 6..(in addition to all the electrics, etc.)...Probably more work than it is worth, which is why other members here are steering you towards getting an XJ with a 4.0 already installed, or going with a 3.4 swap...But hey, if you decide to try it...take pictures and do a write-up!

cherokeebaby

I forgot to tell ya'll, I refuse to get a new Jeep. I know it would be easier but my baby bought me this and I intend to keep it and make it AWESOME!

offroadnut36

you have the 2.8L v6 right?

Metmknice

I know that for S-10/Sonoma's the 3.4L was an upgrade that you can swap in, without much if any modification, it's the same physical size.
And, just buy another complete/maybe wrecked jeep and pull everything off it for your swap. The 2.8L is a big POS one of GM's worst, especially the carb'd ones.

cherokeebaby

Yes I do.

I'll look at the junkyard sometime this week and see what I can find

BlueXJ

I think the 3.4 was used in some pretty fast Pontiacs too. But you don't need speed you need torque. Did you ever get a reply from Whowey? He seems to know a bit more about these V6s and might be able to help you more than we 4.0L Jeep guys.

76ANTHONY

i would check into a 4.3 v6 from chevy, they put out great power and they are a dime a dozen. check on length but i think its the same length as your 2.8. and there are some huge upgrades for them. just my .02

76ANTHONY

oh and you can get one running out here in cali for about 500 bucks and add about 100 bucks for the harness and ecm, should bolt right in. check around because i have done no research on this.

76ANTHONY

just did a real quick search and found this, it may or may not help

http://forums.fourwheeler.com/70/775...wap/index.html