The Dodge Challenger, like the rest of its peers, was available with a wide range of engines, from inline-sixes to big-block V-8s. But if you wanted the most hardcore version, there was only one version to get, the R/T 440 Six Pack. The high-performance variant’s 440-cubic-inch Six Pack V-8 was the biggest engine you could get in a Challenger. It may not have been quite as powerful as the legendary 426 Hemi, but with an output of 390 hp and 490 ft lbs of torque it was still plenty potent. A sub-14-second quarter-mile is nothing to shrug off, either.
From the article by Robert Ross, Bryan Hood, Erik Shilling
