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Discussion Starter #1
Well I finally started my build. Here are the details....

2006 Jeep Wrangler Rubicon Unlimited with Longarms, Coilovers, Poison Spyder Armor, Gen-Right Cage, 37" MTRs w/Walker Evans Beadlocks, factory t-case and axle tubes with chromoly shafts and 4.88s.

Here's a couple of pics on my maiden wheeling trip with it...







And here is what is replacing the 4.0L and NSG-370...









some parts...



More to come...
 

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Discussion Starter #2
The teardown begins at my friend Zack Airth's Fabrication Shop in Las Vegas. His shop is called Airth Defined and they primarily are a hot-rod fab shop, but can do anything. So if you need some fab work done in the Vegas area you should check them out.

The plan is to get the old motor/tranny out before lunch and get a full test fit before the end of the first day.

Drove into the shop with only 24,4XX miles on the drivetrain. It served me well, but I can't leave anything alone...



No turning back now.



See ya later 4.0L; it will do great in the old Jeep project



Looks big with none of the weight on the tires.



Jason posing for a beauty shot before the test fit



Motor Mounts tacked in and ready for test fit





More on the way...
 

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Discussion Starter #3 (Edited)
Ready for test fit.



This is where it pays to have a tall engine hoist.



Zack and I getting the motor squeezed in.





Almost there.









The motor fit perfect the first try. I used the Novak Weld-in Motor Mounts. I followed their instructions which were pretty easy to use and straightforward. The TJs/LJs have a reference hole inside the frame and the front of the Motor Mount gets welded in 4 1/4" behind that hole. I ended up with less than 1/4" clearance between the back of the heads and the firewall. The side to side positioning was perfect. I ended up with about 1/3" clearance between my new relocated AC compressor and the fenders; and the PS pump and the steering shaft. The fit couldn't have been better. My hats off to Novak. Saved me a lot of time and headache. Well worth the $150 bucks.
 

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Discussion Starter #4
So in less than 8 hours we got the old motor/tranny pulled out and the new one ready to install and got a good test fit on the first try. The next step was to pull the motor back out and weld in the mounts and get them painted up. You'll notice since I have the bolt-in Fabtech coilover tower mounts I had to modify one of the support tubes. Fabtech originally designed that mount to bolt to the 4.0L motor mount, which didn't really work to well for me. So Zack just cut the tube and welded it to the new motor mounts. Turned out great and should be even stronger (only downside is I can't take it out without cutting it out, but shouldn't be an issue)











 

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Discussion Starter #5
Well thanks to Zack, Jason, and Mike we got the old motor/tranny out and the new drivetrain mounted in the Jeep in about a day and a half. Now begins all the tiny little things that will take FOREVER. I got the NV4500 to fit with no body lift. The only floor cuts I needed to make were right at the shifter tower. If you have a flat skid there is no way this giant transmission will fit without a body lift. Even with the motor pushed back as far as possible this engine/tranny combo still pulled the transfer case forward about 3.5". I didn't cut the floor near the transfer case, but we did beat on the floor a little bit with an air hammer to create the tiny bit of clearance we needed.

Here is the motor in its final location.









Transmission mount that Zack modified from an Advance Adapters kit.





Skid plate without the plastic skid part which keeps the bolt heads out of the rocks.

 

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Discussion Starter #6
Here's a dyno chart from a stock LY6 with a Mast tune I found on Mast Motorsports website. I imagine an aggressive tune from some of the guys on here like Wayne would be very comparable to this chart.

This is why I chose the Gen IV GM 6.0L LY6. It seemed to give the best bang for the buck with these Gen III/IV GM motors.

 

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Wow...It's all all so SHINY! :eek:

Seriously...nice Heep, man. I think you're really going to like the power available. I just have the LQ4/4500 and my Jeep feels like it will about pull a goddamn wheelie.


Good luck,
Jake
 

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Good lookin' build Quinn! I really glad you found a local shop. It looks like you guys are having way too much fun though. I second Jake's comments. Ur gonna like the power! Keep the pics coming. I pick mine up from the paint shop next Tuesday.
 

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Discussion Starter #9
Yeah I can't wait to drive it. It's running, I just need to build the dash, wire the gauges, and install the driveshafts. I'll get some more pics and video soon.
 

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It is all very shiny! Very nice though! looking forward to seeing the pic's and video's of it running!
 

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Discussion Starter #17
I haven't made much progress on the dash in the last few days but I did design this and get it cut at a local shop out of 3/8" aluminum. I plan to get this and the similar piece that will hold the tach/speedo, powdercoated in a flat black. They will then bolt onto a flat red dash.

I am trying to decide if I should try to keep factory defrost vents and side A/C vents / speaker mounts and make everything else metal or just rip everything out and start over. If I rip out all the vents I will have to modify my cage. What do you guys think?



 
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