For those who want to swap a Gen 3 or Gen 4 LS V-8 into a classic 1975-and-earlier car or truck, the Rebel LS system should be at the top of your list of options to investigate, especially if ...

If your CJ-7 came with the 4.2-liter six that preceded it, you can make that swap pretty easily. For even bigger improvements in horsepower and fuel efficiency, consider an LS swap for your CJ.

He continued, "In fact, the only reason the First-Gen F-body and Second-Gen X-body kits cost $1,399 [DIY price] is because we have to include rack-and-pinion steering.