The 5.7 is most certainly capable of making more power, but there is really no ROI for Dodge to chase more peak power with the 5.7 when they have other engine options. I would venture a pure guess that the 5.7 makes more torque, and has a broader torque curve than the 5.0.
Being an SRT8, this Challenger has the largest of the Hemis — a 6.1-liter that drives the rear wheels with 425 horsepower at 6,200 rpm and 420 pounds-feet of torque at 4,800 rpm. The more common
The third-generation engine is available in four cubic-inch displacements: 345, 370, 376, 392, but they’re more commonly referred to by their metric equivalent: 5.7L, 6.1L, 6.2L, 6.4L. The Gen III Hemi has even been on the “Ward’s 10 Best Engines” list six times from 2003 through 2007, and again in 2009.
24ku8.