Originally outfitted with a 383 engine, this Road Runner now boasts over 500 horsepower, thanks to the high-performance 440 Six Pack V8 upgrade, paired with a 4-speed A-833 manual transmission.

A drag-spec car for most of its active life, this 1970 Plymouth Road Runner is now a Concours-ready classic. ... 1970 Plymouth Road Runner 440–6 Took 9 Months To Restore, Looks Better Than New.

Hailing from Clark, South Dakota, this Road Runner GTX lost its original 440-cubic-inch V8 some years ago. The coupe still rocks a 440, but the ad says the engine is "a blank pad warranty block ...

Stored for 30 Years, Garage Find 1970 Plymouth Road Runner 440+6 Convertible Is a Diamond in the Rough. Drew Hardin Writer Wes Allison Photographer Jul 31, 2017. See All 45 Photos.

In addition to its GTX and Fury models, Plymouth offered the 440 Super Commando in the 1970-71 'Cuda and the 1970 Road Runner Superbird. 1970-1971 Plymouth 'Cuda Kenmo/Getty ...

Midway through the 1969 production year, Plymouth released the 440 big block version of the Road Runner. Known as the powerful 440 Super Commando 6-pack due to its three 2-barrel carburetor setup ...

Check out this fully restored 1972 Plymouth Road Runner GTX with a 440 RB engine, a Hurst shifter, and Ralley wheels, from Mopar Muscle Magazine.

When the Road Runner 440 Six Pack was introduced, the man called up Mr. Norm’s Grand Spaulding Dodge and asked if it was possible to shoehorn the motor into his wagon.