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Yes about 20% of our builds are manual to automatic swaps. We mostly run the 6l80 transmission because it works perfect in a JK. We will be offering the 8 speed 8l80 in the upcoming Gen V builds but I'm not sure how much advantage there is over the 6l80 since the gear spread is similar. Our...

The LSA runs a 6l90 transmission which is good for nearly 1,000 Ft lbs of torque and has a manual mode. I think it has enough torque it will spin 40's on pavement.

When it comes to the 6.0 and 6.2 they will both get the job done, it comes down to performance vs cost. The truck 6.0 is built to haul weight, and it will do it on regular gas (like the 5.3). The 6 liter engine has an iron block and is almost bulletproof. The 6.0 is a great expedition engine...

After supporting about 200 swaps here is my opinion. I will limit this the Gen IV engines since they are emissions compliant and make the most sense in a JK. I will also assume you are running a 6l80 transmission since it is very strong, adaptive, low friction, low heat , inexpensive and...

There is a 4WD version of the Tremec available now, shifts better than the NVG4500.

Lsa If anybody is interested in an LSA:

We have LS JK's all over Colorado. If you're specifically talking about the Denver jurisdiction it is tough. We have worked with the Denver Lab on several occasions regarding Hemi's with unset monitors. The number of computers does not matter, what matters is you run all the original hardware...

I think the LFX has proven more reliable than the Pentstar too. In addition you can use the advanced GM transmissions.

Yes we have 5 and 6 speed manual options.

We have an LFX engine running on a stand for testing , I'll try and get a video up. Were testing a Camero engine but some variants are over 400 HP. Our concern is torque available in a heavy chassis.

With Direct Injection and VVT this 6.2 L86 sounds aggressive:) This JK is running our latest electronics so the Jeep engine harness and all redundancies have been eliminated for a very clean, simple install. This LS runs completely stand alone for maximum reliability. This means all engine...

Here are some pictures of the Gen V 6.2 before we drop the body. You can see the belt driven vacuum pump which should give us adequate braking even at idle. Looks like we can now run the full size truck exhaust manifolds.

I have been a level 2(2G) State emission technician and inspector going on 20 years, and I worked in California. I finally was able to talk with a California Referee supervisor yesterday at length, and things are looking better. We have over 25 LS JK's certified in California now and I heard...

We might be installing Hydrogen engines at that point lol. We recently did a retro swap using a early 60's 283 small block so anything is possible.

We are currently doing an L83 and L86 swap. The prices of the Gen V engines are finally starting to drop, and in the case of the 5.3 drop fast. We went through the same thing with the Gen IV engines when they were released, the yards held the prices up for a couple years until the supply was...

All the Gen IV truck engines have the same architecture so interchangeability is good. To go from a 6.0 to a 6.2 would not require much, basically a reprogram of the ECM, BCM and TCM; most all of the hardware is the same. Try and stick with 2010 or newer engines and transmissions. 2010+...

With a 5.3 engine we can support the stock JK NSG370 6 speed manual transmission, that's about all it can handle. GM did not offer the gen IV V8 trucks with manual transmissions so we do not support OE cruise control with the manual transmission. We do offer an aftermarket CC which works OK...

We no longer support the Gen III engines, mainly because they are not emissions compliant; in addition the Gen IV engines added many desirable features. The Gen IV engines added can driven transmission support; this means you can run the 6l80 transmission, you cannot run the 6l80 with a Gen III...

Yes we do a lot of manual to auto swaps. For 2007-10 JK's you need a new main center console, sled(metal plate under shifter), automatic shifter assembly, automatic brake pedal(no need for a new pin or clip), key interlock cable and shifter cable. On the 11+ JK's it's very similar but there are...

Hello It's good to be here. We have a lot of WAL members come through the shop so I think it's time to contribute here. Most of you know we have been doing LS JK swaps since 2009 and I believe we are the originators of the fully functional LS JK. We work on nearly all performance upgrades for...