TJ Engine Replacement Project
- Thread starter wct097
- Start date
I think the questions here surround swapping the engine twice and doing this with a daily driver rather than a project car.
I would definitely drop a crate stroker in there, myself. Least amount of problems making it fit, nice power increase, Quick turn-around, and no risk of a rebuild going wrong.
You bought the biggest POS crate motor GM ever put out and paid 6x what a good low mileage LS setup would costLowest cost, fastest solution is to install same motor. High miler or not. Seems pretty simple really.
Everyone saying go with the GM V8 either:
a) doesn't own a jeep, but if they did, that's what they'd LIKE to do - pipe dream
b) owns a Jeep and that's what they'd LIKE to do - pipe dream
c) hasn't a clue what truly needs to be done to accomplish V8 swap so the Jeep doesn't grenade the first time you get after it.
d) is just fawking with you
They are so commonplace that with the exception of burning the motor mounts in, everything else in the swap is bolt in using Novack parts. More power, better mileage, more reliable > 40 year old design inline turdhttp://www.novak-adapt.com/knowledge/pdfs/tj_engine_mounts.pdf
chris c96
VIP
it is not just jeep, people are putting ls based engines in EVERYTHING. pick a vehicle and you'll likely find a ls swapped version of it. it also appears that the prices are way down since i explored it due to the common place this swap has become...You bought the biggest POS crate motor GM ever put out and paid 6x what a good low mileage LS setup would cost
http://www.novak-adapt.com/knowledge/pdfs/tj_engine_mounts.pdf
now, that does not mean i'd do this swap on a 245k mile tj, i wouldn't. i was just stating the ls based engine is superior to the hemi garbage....
A truck/suv 5.3 drivetrain with accessories and all wiring is going for less than a grand.
It doesn't matter. You have to alter shit if you're going to increase the hp that much. It costs a lot to do. If the TJ was designed for 300+ hp, it would be different.You bought the biggest POS crate motor GM ever put out and paid 6x what a good low mileage LS setup would cost
http://www.novak-adapt.com/knowledge/pdfs/tj_engine_mounts.pdf
OH HELL YEAH! I'D JUST DROP ONE OF THOSE IN. SHOULDN'T NEED ANYTHING.
I'll see your helicopter engine and raise you a piece of British aviation history:
BAC TSR2 RAF Aircraft Olympus 320 Jet Engine TSR-2. UNIQUE Oportunity | eBay
I like that it says $5,000 shipping expected between Tue. Feb. 14 and Mon. Feb. 27
I figure AA or Novak can make you an adapter for the transmission, everything else is pretty straightforward.
That's really not much longer than a 4L, so he should be good to go.
Indeed. The R&D shouldn't cost much. I see this as a viable option. It might require slight driveshaft modification. Again, not a problem.
Like what? All you are using is the jeep body, frame, suspension and axles. THe motor is lightter than the boatanchor it replaces. Leave the auto tranny attached to the motor, use a GM np231 front half and jeep np231 rear for the transfer case. The stock gauges can be easily made to work with the new motor. I can get a 8.8 installed (if it has the d35 and not factory 44) in the back for $150 that will more than handle the power and jy extra 30 shafts for the front. You did your swap the wrong, expensive way. LS swaps are EXTREMEly commonplace.
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Everyone claims this. I've done it and know exactly what everything cost me. I was going to go LS6 and was talked into the other. I could not use the stock gauges either way. Either motor would ****ing destroy shitty Jeep drivetrain components.
Floss some dough and do your claimed economy build and list all costs. I guarantee it will cost substantially more than dropping in a $300 4.0l with a seal kit. Reality.
prolly grossly inflated the price of 4.0s when he put so many out of commission. 
chris c96
VIP
i don't believe anyone was comparing an ls based swap to a $300 used engine. oac posted a link to a nearly $4k stroker based off the 4 liter. that is when i chimed in.
Bro, its Crimmus. Give it to him for a giff.
