but Hot Rod Magazine tested the 1968 340 at 320 horsepower and 368 lb-ft. The magazine modified the engine, like swapping the four-barrel carburetor for the "six-pack" configuration, to produce ...

The 340 ci motor also had a higher compression figure than its less powerful sibling at 10.5:1, compared to the 318's 9.2:1 ratio. This higher compression was key in allowing the motor to produce ...

When Chrysler invented antifreeze in 1937, it established the Mopar brand (a mashup of the words "motor" and "parts") to ... followed in 1967, and the 340 premiered the following year.