If a lot is good, even more is better. Hemi power was back and improved in the WK2 Grand Cherokee. The base 5.7L Hemi now packs 360 hp, while the SRT-8 variant delivers 470 hp from 6.4L, and the blown 6.2L stolen from the Hellcat unleashes 707 hp to all four wheels all the time. What a time to be a Jeep owner.

From Ford Flathead to GM Gen V LT, and including everything in between like small-block and big-block Ford and Chevy, Gen III/IV LS, Coyote, Hemi, and more, we have the parts to coax more power out of the engine under the hood of your hot rod.