From the Chrysler Newport to the Dodge Coronet to the Plymouth Road ... even more to 390 hp and 490 lb-ft of torque. The 440 was a four-barrel engine, but Mopar also created a six-barrel version ...

At first glance, this Six-Pack automatic Challenger appears to be one of only 121 built with this configuration. It's actually a well-crafted clone.

The Road Runner was Plymouth's stripped-down, affordable muscle car and the 440 6BBL engine was made for it. The Super Bee, introduced in 1969, was Dodge's no-frills speed machine and the first in ...