Released in mid-1969 model year, Dodge's Super Bee and Plymouth's Road Runner models were offered with 440 Wedge engines for the first time and these special powerplants had three Holley 2300 Series carburetors, totaling some 1,350 cfm (cubic feet per minute) of induction capacity.

An aluminum Edelbrock intake manifold was sourced by Chrysler for these newly released engines and the factory also bumped up the compression ratio to 10.5:1 to fully take advantage of the induction upgrades. As a result horsepower rating was upped to 390 and and torque now at 490 foot pounds, which matched the torque rating of the Hemi. Plymouth called it the "440+6" however no matter the application, on the streets like Woodward Avenue or Van Nuys Blvd, they were all known as "Six-Packs!"