If you've ever been disappointed by the horsepower figures coming from your Jeep Wrangler JK, whether it has the 3.8-liter or the 3.6-liter V-6, and you've considered an LS swap, you're not alone.

There are hundreds of magazine stories that mention about how easy it is to swap an LS engine into an early Chevelle, Camaro, or other GM vehicle of your choice. But that doesn’t mean this conversion ...