Chrysler's HEMI engine ... increase over the standard 5.7-liter HEMI. If you need more horsepower but don't want to do an engine swap, you could add a supercharger to your 5.7-liter HEMI.

That herd of ponies was produced from a supercharged 6.2 HEMI V8, which was Chrysler's most powerful engine ... The 6.2 Hellcat Supercharger Can Be Used On The 5.7 HEMI With Conversion Parts ...