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-   -   Engine swap (https://www.jeepforum.com/forum/f13/engine-swap-4360901/)

Wolfeman1992 06-24-2019 09:01 AM

Engine swap
 
So my 4.0 grenade Friday and considering what I have planned in the future I'm thinking of a chevy 5.7 swap anybody have any experience csb swapping a ZJ? I can't find anything on swapping them

kg6mov 06-26-2019 06:15 AM

They don’t fit particularly well in the zj engine bay. There’s a good swap on fb that cut the zj off at the firewall and fabbed tube frame from there with hangers for stock fenders. That’s probably the best way to do it realistically.

Get another damn 4.0, or swap to a 5.9 if you want to stay with the stock zj platform.

Turbo build? Be creative.

Wolfeman1992 06-26-2019 11:52 AM

Honestly that's the best reply I've gotten to this question outta everywhere I've posted it the normal answers I get

1 switch to a XJ (while the XJ is great not what I want)

2 just get another 4.0 (not what I want considering I've killed 2 of them but probably what's gonna happen)

3 do a 5.2/5.9 swap (hell no if Im gonna engine swap a factory option Im gonna junk my jeep and how l buy a factory V8)

FlamingRain 06-26-2019 06:06 PM

I'd be interested to hear how you've killed two 4.0s. I know they don't make a lot of power for the displacement, but those things are pretty much indestructable. A friend of mine dunked one in a pond by his house multiple times and has been able to get it running again quickly. The 5.2 and 5.9 are also excellent motors if treated correctly. And yeah, you'd be better off with your time just buying one with a factory V8, the swap can get complicated across Gen 1/2 and across multiple transmissions and computer styles.

Wolfeman1992 06-26-2019 06:38 PM

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Quote:

Originally Posted by FlamingRain (Post 40660077)
I'd be interested to hear how you've killed two 4.0s. I know they don't make a lot of power for the displacement, but those things are pretty much indestructable. A friend of mine dunked one in a pond by his house multiple times and has been able to get it running again quickly. The 5.2 and 5.9 are also excellent motors if treated correctly. And yeah, you'd be better off with your time just buying one with a factory V8, the swap can get complicated across Gen 1/2 and across multiple transmissions and computer styles.

1st 98 zj 4.0 e92 supercharged 7" long arm on 37s, pushed to much boost lifted the head completely locked

2nd 94 zj 4.0 stock junkyard 4" lift on 30s, half sunk it and my ******* drove it home with water in the oil slung a rod destroyed pan, block, broken valve, broke 2 lifters, yea motors dead

zjosh93 06-27-2019 07:17 AM

What about a 2JZ, RB series, or the Ford Barra 4.0? All of them are straight 6s and capable of 1,000 hp. The Barra is even 4.0 liters so you could always tell people "It's a stock 4.0"

Wolfeman1992 06-29-2019 05:57 AM

I decided to go with a lm7 5.3 vortec 4l60e and np241 no adapters required just mounts and and wiring, a guy on mallcrawling did it and and it basically dropped in no cutting or trimming hardest part was the exhaust


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