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Old 05-30-2016, 01:55 PM
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Another AZ JK

Greetings from Mesa, AZ! Although I'm new to the forum, I'm not new to Jeeps. My first was a CJ-7 in high school. Since then I've owned a few wranglers, a cherokee, and a grand cherokee.

Currently, I building up a JKU Sahara that I purchased new in 2008. It's been lifted about 3" using JKS adjustable spacers and an OME spring/shock kit. JKS front and rear trackbars, front swaybar disconnects, and rear swaybar endlinks have also been installed. It sits on 33" Nitto terra grapplers mounted to 17" black rhino wheels.

I tried the Banks CAI and exhaust, but have noticed little difference in the anemic output of the 3.8L... so, the next big step will be a 6.0L LS aiming for around 450hp/torque! It will be mated to a 6L80e tranny. Engine build under way, but it will be a while before it's installed.

Anyway, that's about it for now. Next interim upgrade will be a big brake kit. Looking forward to all the information the forum has to offer! Cheers!

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Old 05-30-2016, 02:19 PM   #2
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Old 05-30-2016, 02:23 PM   #3
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Quote:
Originally Posted by JeepRad View Post
Greetings from Mesa, AZ! Although I'm new to the forum, I'm not new to Jeeps. My first was a CJ-7 in high school. Since then I've owned a few wranglers, a cherokee, and a grand cherokee.

Currently, I building up a JKU Sahara that I purchased new in 2008. It's been lifted about 3" using JKS adjustable spacers and an OME spring/shock kit. JKS front and rear trackbars, front swaybar disconnects, and rear swaybar endlinks have also been installed. It sits on 33" Nitto terra grapplers mounted to 17" black rhino wheels.

I tried the Banks CAI and exhaust, but have noticed little difference in the anemic output of the 3.8L... so, the next big step will be a 6.0L LS aiming for around 450hp/torque! It will be mated to a 6L80e tranny. Engine build under way, but it will be a while before it's installed.

Anyway, that's about it for now. Next interim upgrade will be a big brake kit. Looking forward to all the information the forum has to offer! Cheers!
Welcome to WF and stay out of the heat!!!
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2006 LJ Rubicon - Solar Yellow - Very Stock'ish - The Press Casual LJ-R build
2012 JKU Sahara - Pro Comp LED Headlights - PRS Audio mod- SWS - GraBars - Bestop Cargo Cover
- Mopar 2" Frankenlift - Teraflex Falcon Shocks - RE TB/Brackets - JKS mount/Bilstein stabilizer -
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Old 05-30-2016, 04:01 PM   #4
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Old 05-30-2016, 08:40 PM   #5
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Welcome to the forum, be sure and get your "JEEP OUT"...
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Old 05-30-2016, 09:21 PM
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Thanks for the warm welcome! I'll post more pics when time permits.

[IMG][/IMG]
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Old 05-30-2016, 09:28 PM
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And just for fun... here is a pic of my 2001 XJ.

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Old 05-31-2016, 03:52 AM   #8
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Old 10-01-2017, 11:14 AM
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Greetings all! So I left everyone hanging almost 1.5 years ago! Sorry about that! It took about a year for the 6.0L build and install. I've been driving it for about 3 months (2000 miles) and couldn't be happier. Had a few hiccups along the way, but the engine swap was definitely worth it. I will provide a few pics and some detail regarding the build, please ask any specific questions and I will do my best to answer.
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Old 10-01-2017, 11:21 AM
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Major vendors/suppliers:

My engine was built by Brooks Racing in Tempe, AZ, and installed by Richard Harp, working out of the same shop.

My LS swap kit was purchased from RPMextreme. Excellent customer service, these guys are topnotch!

Full custom exhaust (long tube headers to tailpipe, with magnaflow muffler) fabricated by Redline Performance Manufacturing in Mesa.

Driveshafts by Tom Woods in Utah.

I went with all new OEM GM(ACDelco) accessories.
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Old 10-01-2017, 11:37 AM
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Powerplant:



For the engine, we started with a new GM 6.0L block. Internals include:

Molnar 4" stroke crank
Molnar billet rods
JE Pistons
ARP main studs
Cam Motion custom ground cam (near stock, for drivability)
COMP Rocker arm trunion kit
Hardened Push Rods
GM rocker arms, lifters,

We also added RHS performance heads, 61# injectors, and (not pictured) the TrailBlazer SS intake and Throttle body.

The remaining engine parts and covers (oil pan, valve covers, etc.) were reused from a 4.8L LS that was given to me by a friend.
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Old 10-01-2017, 11:41 AM
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The transmission is a GM 6L80e (4x4) purchased used with 55k miles. The transfer case is original to the JK, and the adapter supplied in the swap kit by RPMextreme.

The engine build took appox 9 months. Brooks Racing moved to a new location part way thru my build which really delayed things. I am extremely happy with the final result, but it took far too long to get there.
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Old 10-01-2017, 11:47 AM
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A few build pics:

First step... body off, then out with the old 3.8L!





sorry for the poor quality, taken by my installer on his phone...
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Old 10-01-2017, 11:50 AM
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Old 10-01-2017, 11:52 AM
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a few more pics, including trans and driveshafts...





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Old 10-01-2017, 11:53 AM
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Old 10-01-2017, 11:56 AM
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So, with the tbss intake and larger injectors, it was necessary to replace the fuel pump. I don't have pics, but my installer modified a GM fuel pump to fit in the stock fuel tank to provide the necessary fuel for a very thirsty engine!
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Old 10-01-2017, 12:07 PM
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Because I live in the desert, we also decided to replace the original radiator/fan with a dual core aluminum radiator supplied by RPMextreme as well as the Pentastar fan. The radiator is excellent quality with inlets/outlets and mounting tabs already welded in the correct location for the swap.





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Old 10-01-2017, 12:21 PM
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With the body back on... it was off to RPM in Mesa for exhaust fabrication.





Left:



Right:

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Old 10-01-2017, 12:25 PM
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Exhaust installed!







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Old 10-01-2017, 12:31 PM
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Once the exhaust was complete, CAI installed and everything else buttoned up, it was sent to NicD tuning for the final tune.

so the results... my jeep dyno'd at:

435rwhp
430 lb ft torque

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Old 10-01-2017, 12:47 PM
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Overall a smooth process, although there were a few hiccups along the way...

1. At different times both the ecu and tcu required a reflash and had to be sent to RPMextreme, resulting in about 10 day turn around each time.

2. A few issues with hose fittings, etc. to be expected.

3. Even with the swap kit and parts to strip from the 4.8L LS, the additional parts required for the project was over 3 pages in length!


The first 2000 miles have been great! One mildly signficant failure, the input/output shaft speed sensor in the trans, which resulted in abnormal shift pattern and threw a check engine light. It never left me stranded tho.

Also, I overheated the battery. The alternator and electrical system checked out, so it was thought the most likely cause was a bad cell.

I was concerned about the underhood temps, being in Phoenix, so I went with the AEV heat reduction hood and love it!



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Old 10-01-2017, 12:49 PM
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Also, wanted to thank quadratec, here on the forums for their help and supplying the hood, bumper, and rock rails. Thanks!!

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