Originally Posted by CSM19Z5M

Just my opinion. If your swap was half the cost you didn't buy all new OEM parts to do it. The LS is lighter, has more HP per cubic inch stock, get's better MPG, no mod of the engine compartment was required whatsoever, and the RPM Extreme wiring harness is plug and play and I have tap shift and "tow/haul" with it. The LS3 crate engine is cheaper than the comparable Hemi equal. Other than that ........................
Let's just say we agree to disagree though and leave it at that.

Originally Posted by Da20captain

You did not have to change the engine mounts? I did not use a crate motor or trans. I used a truck motor. 400HP has been sufficient. Everything else was brand new lol. One thing is for sure is that both of our Jeeps are much more fun with the V8's.

Originally Posted by CSM19Z5M

Need some help. Was planning to put a Gen IV 5.3 in my 2008 JKU. Motech has a great kit available to do so. Looking for an engine I found a Gen V 2014 5.3 L83 and 6L80E transmission from a Silverado with 12K on it at a can't pass it up price. Unfortunately, none of the conversion company's support the Gen V motors as yet. The primary differences between the Gen V and earlier Gen IV is in the front accessory drive arrangement and the PCM programing. Motech tells me they are not fielding a Gen V kit until late this year. I could sell the engine and buy a Gen IV crate engine but really want to try to make this work first. Has anyone out there installed one in their JK as yet? If so I would appreciate talking to you. Thanks.