Jeep Garage  - Jeep Forum

Jeep Garage - Jeep Forum (http://www.jeepgarage.org/forums.php)
-   Engine Performance/Intake/Exhaust (http://www.jeepgarage.org/f183/)
-   -   3.7 swap with 4.7 or 5.7 liter? (http://www.jeepgarage.org/f183/3-7-swap-with-4-7-or-5-7-liter-27714.html)

dane.p 08-27-2011 11:01 AM

3.7 swap with 4.7 or 5.7 liter?
 
Would it work if I swapped my 3.7l laredo with a 4.7 v8 or a 5.7 hemi

Escape 08-27-2011 11:40 AM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
Anything can be made to work, but it would be much easier to just sell the 3.7 and get either the 4.7 or 5.7.

Just about everything (electrical/mechanical) would need to be changed over to swap a v6 to a v8.

If you have or found a donor vehicle it would be do-able.

robpp 08-27-2011 11:51 AM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
cleveland pick a part does the conversions. its about 6-7 K.

you need all the electronics as well as the motor. plus the 3.7 trans is diff so prolly need motor and trans and all electronics

mitchelm 08-27-2011 11:55 AM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
However, you might be able to swap a new 3.6 for the 3.7. same tranny. But probably just about the same cost involved.

mitchelm 08-27-2011 11:58 AM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
What I like is that the the 3.6 is now mated to a manual tranny and transfer case in the 2012 wrangler. This would be sweet to adopt to a grand cherokee! I just wish theyd make a limited edition manual tranny equipped GC. I miss the 93-94's that had them with the ol' inline 6.

robpp 08-27-2011 12:07 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
Quote:

Originally Posted by mitchelm (Post 473949)
However, you might be able to swap a new 3.6 for the 3.7. same tranny. But probably just about the same cost involved.

he wnats MORE power...going form the 6 cyl to the 6 cyl at a considerable cost for what? besides getting the trans.......


i would rather spend the same money and have a hemi.

JETLIFE 08-27-2011 12:29 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
I agree, just sell it and buy a limited with a hemi. Not only would it save a lot of time and money, you would get all the perks of the limited. Then you can do performance mods and make some real power.

Buying a 3.6L is gonna cost as much as buying a 5.7L with less power.

If you're gonna go all out, buy a 392/426 hemi and build a serious engine. Either way a swap is going to cost a LOT!

My friend swapped his 4.7L out of his Durango for a 528 hemi with a 727 trans and a 9" ford rear end. The engine/trans with install was almost $30,000. And that still doesn't include carb/4 core rad/ ignition/ exhaust/ gutting the wiring and fabrication custom parts.

It costs to be the boss! Lol

dane.p 08-27-2011 12:31 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
Or is there anything I can do to the 3.7l to match the 4.7 l specs as in horsepower or torque? Basically adding 30 to 40 hp and adding around 70 lb-ft

Mr. Boh 08-27-2011 12:38 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
Quote:

Originally Posted by robpp (Post 473945)
cleveland pick a part does the conversions. its about 6-7 K.

you need all the electronics as well as the motor. plus the 3.7 trans is diff so prolly need motor and trans and all electronics

You could go 6.1L and keep the same trans.

dane.p 08-27-2011 12:39 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
But would i be able to keep electrical , cooling, etc.?

mitchelm 08-27-2011 02:17 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
Quote:

Originally Posted by robpp (Post 473956)
he wnats MORE power...going form the 6 cyl to the 6 cyl at a considerable cost for what? besides getting the trans.......


i would rather spend the same money and have a hemi.


Well, i'm just throwing out other options with possibly less complexity and cost. Besides, 210 -> 290 hp and 235 -> 260 ft.lb tq is an increase in power in an engine that weighs less and is better on mileage than his current engine. There will also be great aftermarket support now that the pentastar is in the wrangler.

But all things aside, a trade is the way to go.

Ported throttle body, intake and exhaust are the obvious ways to increase power and not break the bank. You could also swap in 3.73 gears front and rear at the expense of highway cruising and mpgs.

dane.p 08-27-2011 02:35 PM

Re: 3.7 swap with 4.7 or 5.7 liter?
 
Has anybody ever had a good experience with performance chips?


All times are GMT -5. The time now is 02:51 PM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright 2012 - JeepGarage.Org
The Jeep Grand Cherokee Owners Community