Rounding out performance enhancers, the '69 Plymouth Road Runner 440 6-BBL and Dodge Super Bee Six Pack, had lightweight removable fiberglass hoods with big open-air scoops. The 426 Street Hemi ...

Jeff Schwartz of Schwartz Performance shows off this barn find a 1971 Dodge Charger 440 Six-Pack Super Bee with a walk around and an attempt to break loose its frozen 440 big-block engine.

While it was mostly used in muscle cars like the Dodge Charger or Plymouth GTX, you could even find the 440 in full-size sedans and SUVs, though not necessarily in the Six Pack version.

Dodge sold only 356 units. The 440-cubic-inch (7.2-liter) Six-Pack V8 is another rare and desirable powerplant. Dodge delivered 2,035 examples with this powerplant. The Challenger you see here ...