what year did the evo engine come out
However, in the worldwide Harley-Davidson community, 1984 is also known as the year Harley-Davidson introduced two superb new products â one of which literally was the driving force behind the other! 1984 was the year of the EvolutionÂ® engine and it was typically introduced in a new Harley-Davidson motorcycle design and known as the FXST SoftailÂ®.