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Old 11-28-2006, 03:12 PM   #1
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4.7 upgrade vs. LT1 swap

Looking to get more power for my jeep. I know all that goes into a LT1 swap, and honestly, i dont want to do it. Is the 4.7 stroker a good idea. Anyone know anything about it? Pros and cons of both sides would be great.

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Old 11-28-2006, 03:24 PM   #2
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What makes you not want to do the LT1 swap?

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Old 11-28-2006, 03:26 PM   #3
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New tranny, transfer case, wiring, computers, gauges...anything else i forgot. I would love to do it, i just dont want to get in over my head. just looking for opinions on the 4.7 stroker. Never really heard to much about it.
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Fabtech Front Bumper.. K&N Air Filter.. True-Trac Rear.. Herculined Tub

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Air Locker Front.. 35" Boggers.. Exhaust.. 4.56 Gears Front/ Rear
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Old 11-28-2006, 05:12 PM   #4
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Don't personally know anyone that has done one, but the swap itself is straight forward, just take out the current I-6 and drop in the stroker. The power numbers that I have seen advertised/posted are about the same as most SBC conversions. I think that the 4.7L is actually more expensive than a SBC motor would be, but the ease of the swap makes up for the price difference (I would think). Keep us updated!
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Old 11-29-2006, 07:42 AM   #5
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I think all together, the Stroker ends up costing around 5,000. I'm just not sure on the power output of the motor compared to that of a LT1. Also, i was planning on running dana 44s front and rear, think they could hold up to that power, or swap in 60's?
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15x12 Eagle 589s.. 4 KC Lights..
2" Coil Spacers Front.. Home Made Rear Bumper..
Fabtech Front Bumper.. K&N Air Filter.. True-Trac Rear.. Herculined Tub

To Do List:
Air Locker Front.. 35" Boggers.. Exhaust.. 4.56 Gears Front/ Rear
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Old 11-29-2006, 08:09 AM   #6
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I have around 4000 in my LT1 swap. That's a high estimate though. That's complete with 4L60E, NP231 crawl box and Dana 300. I had my wiring harness serviced from lt1350.com. I'm running shorty headers and Art Carr shifters. I'm going to toss my junk on a dyno to see what kind of numbers I am putting out. Hoping for 400 ft.lbs. Of course I've done everything myself.

As far as 44s holding up it just depends on what size tire you are going to run and how you use the skinny pedal. I've seen the rear 44 twist splines just from drag racing on a normal inline 6.
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Old 11-29-2006, 08:11 AM   #7
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I have a great idea

You should do the stroker and then we can race.
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Old 11-29-2006, 08:47 AM   #8
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I really would rather run a V8, just the thought of it in my TJ brings a smile to my face, so in the end, thats what i really want. Looks like it will be Dana 60s as well. Probably wont be for a while still, but starting to plan and save.
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2001 Jeep Wrangler
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3 Inch Body Lift.. 35/14/15 Groundhawgs
15x12 Eagle 589s.. 4 KC Lights..
2" Coil Spacers Front.. Home Made Rear Bumper..
Fabtech Front Bumper.. K&N Air Filter.. True-Trac Rear.. Herculined Tub

To Do List:
Air Locker Front.. 35" Boggers.. Exhaust.. 4.56 Gears Front/ Rear
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Old 11-29-2006, 09:11 AM   #9
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Be patient. I have come across great deals since I wasn't in a hurry to buy. I got a complete LT1, 4L60E, harness, and CPU with 80k on the clock for 800 bucks complete
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Old 11-29-2006, 04:19 PM   #10
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Wow, cant beat that. I know, I have plenty of time to shop around, i'm going to start with axles first, but whatever i come across, i'll pick it up as i go.
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2001 Jeep Wrangler
4 Inch Rough Country Suspension
3 Inch Body Lift.. 35/14/15 Groundhawgs
15x12 Eagle 589s.. 4 KC Lights..
2" Coil Spacers Front.. Home Made Rear Bumper..
Fabtech Front Bumper.. K&N Air Filter.. True-Trac Rear.. Herculined Tub

To Do List:
Air Locker Front.. 35" Boggers.. Exhaust.. 4.56 Gears Front/ Rear
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Old 12-05-2006, 01:15 PM   #11
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i've got a hesco 4.7 stroker with the head. runs great, gas mileage is 15-18,idle is not quite as good as before-----------BUT, im getting my ducks in a row to do what i had wanted to do before but didn't for the same reasons that you have----I REALLY THINK THE "I COULD-A HAD A V8" is sooooo true---mase
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Old 12-05-2006, 07:19 PM   #12
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Quote:
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What makes you not want to do the LT1 swap?
Will a LT2? Is it bigger than the LT1?

I have a brand new one ready to drop in. The only problem is it is still in my girlfriend's C6 Vet and she might notice if it went MIA...
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Old 01-10-2007, 09:34 PM   #13
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just to clear this up since i'm a bit confused. 4.7 on the stock v6 wrangler block? It shakes now, i dont want to imagine what it will be like with 4.7 in it. Just my opinion though. Any one know a link to a v8 wrangler?
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Old 01-10-2007, 09:38 PM   #14
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just to clear this up since i'm a bit confused. 4.7 on the stock v6 wrangler block? It shakes now, i dont want to imagine what it will be like with 4.7 in it. Just my opinion though. Any one know a link to a v8 wrangler?
I6
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Old 01-10-2007, 09:43 PM   #15
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The only problem with the LT1, and LT2, is..........they don't produce alot of torgue at low RPM's..........The basic small block chevy 350 out does them both, on low rpm torque. Just a thought..........The LT series, has alot of punch, at high rpm's. But who wants to crawl over rocks, at excessive speed?????
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Old 01-10-2007, 09:45 PM   #16
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Any one know a link to a v8 wrangler?
There is a company that does the 5.7 hemi engine conversion, and states that it is a plug in motor.......?????
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Old 01-10-2007, 09:45 PM   #17
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Anyone thought of doing a 4.7L V8 out of a 99+ Grand Cherokee? We had a 2000 before we got our Tahoe, and I think that would make one fun Wrangler!
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Old 01-10-2007, 10:03 PM   #18
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The only problem with the LT1, and LT2, is..........they don't produce alot of torgue at low RPM's..........The basic small block chevy 350 out does them both, on low rpm torque. Just a thought..........The LT series, has alot of punch, at high rpm's. But who wants to crawl over rocks, at excessive speed?????
you must have missed the memo
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Old 01-11-2007, 01:29 AM   #19
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Pros for a Stroker

Your computer works with it just like it was your normal 4.0.
Emissions included.
Strictly pull and replace.
No tranny change as long as you were running the 4.0 before.


Cons for LT1
The opposite of all the above.


Go with a Hesco stroker!!!!


As soon as I can afford it, I am going to do a completely new 4.7 with an aluminum block. 300hp and 333ft lbs of torque!
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Old 01-11-2007, 01:33 AM   #20
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Quote:
Originally Posted by Triple88a View Post
just to clear this up since i'm a bit confused. 4.7 on the stock v6 wrangler block? It shakes now, i dont want to imagine what it will be like with 4.7 in it. Just my opinion though. Any one know a link to a v8 wrangler?
Dude, the 4.0 is one of the most bulletproof engines around! People are building them with upwards of 330hp now.
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Old 01-11-2007, 01:33 AM   #21
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Quote:
Originally Posted by bluvikng View Post
There is a company that does the 5.7 hemi engine conversion, and states that it is a plug in motor.......?????
A hemi conversion will cost you about 20K to do. You can get it done with AEV.

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http://img.photobucket.com/albums/v4...chris/logo.jpg
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