ANSWERBack in 1955, you (or your grandpa) might have posed a very similar question: "Why does that new-fangled small-block Chevy make more peak power and torque at a higher rpm than my trusty Flathead ...
The third-generation Hemi engines have been in production since 2003, and ever since their arrival they have been in demand. The 5.7L is what you'll commonly see in vehicles, but 6.1L, 6.2L, and 6.4L ...