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borrowedeye 09-13-2011 02:33 PM

ls1 YJ transplant
I just graduated from college and need to replace the jeep i sold to put me through college. I figured I would by a newer tacoma but then got to thinking, why spend 20,000 grand on a "family" truck? I dont have a family, so why not build a jeep? So I am thinking of doing another YJ '94 or '95. I want to go LS1 for power, after market availability, MPG's etc.
so I had a few questions for my fellow jeepers.
1st. what does a swap cost?
2nd. best year LS1 to get?
3rd. What standard tranny should I use?
4th. What kind of MPG's should i expect with 33's
5th. I can do this all in my garage correct?
6th. If there is a better V8 swap let me know.
All help will be greatly appreciated and i can't waite to get this under constuction.
thanks for you help.

Ibuildembig 09-13-2011 02:35 PM

My guestimate would be about 5-8K by the time your done if you have nothing to start with.

amoujaffar 09-13-2011 02:46 PM

ahh this looks familiar. i really wanted an LS1 too, but it really isnt that neccessary.

Many guys bore and stroke the 4.0 and keep everything the same, some guys change out axles, and mix and match all over. you may wanna check out my thread, a lot of guys weighed in on my decision, and i finally came up with my plan. also you may look deeply into novak-adapt's website, as they have just about everything you need to know for any GM (and most other) swaps.

believe it or not my economical MPG came out best with a 5.3, 4 spd, and 373 gears, but to each his own, check mine out here.

my final setup is on the last page, but theres a lot of good info in there

Hemi YJ 09-13-2011 06:23 PM

Put a Hemi in it.

borrowedeye 09-14-2011 08:53 AM

thanks for all thehelp, keep it coming.
As for putting a hemi in, that hit me on my drive home last night. itd keep it all mopar and id like that. who has done that and is the after market as big for the hemi?

Hemi YJ 09-14-2011 09:32 AM

I did it and the aftermarket is big enough. But like any major build there is a lot that you're going to have to do yourself.

borrowedeye 09-14-2011 02:20 PM

what tranny did you use? Auto or manual? I am leaning more toward hemi now that I think about it and there are people doing it.

Ibuildembig 09-14-2011 02:27 PM

I say go all out and put a real HEMI in it :)

borrowedeye 09-14-2011 02:58 PM

"all out" implies i have money lol

Hemi YJ 09-15-2011 12:37 AM

I use a 5-45RFE. Strong as Hell and has a double overdrive. If I had $25,000.00 sitting around I might throw a "real" Hemi in mine too. But I'll settle for 18-20mpg and 450hp. No complaints here.

borrowedeye 09-15-2011 09:31 AM

i think you just made up my mind! always been a fan of the hemi's, about got me disowned, since my family is die hard ford but i still like them.

Hemi YJ 09-15-2011 10:01 AM

I put one in my 1990 4.2L YJ and one in my wires 2002 Dakota Quadcab. I don't regret it one bit.

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