Those would count I suppose, but there was a whole genre of crime films known as Eurocrime; more along the lines of cop and gangster films. Some of them that I've seen have been violent and sleazy. You'd like some :)
The Big Racket. (1976)
Il Boss (1973)
The Heroin Busters (1977)
Cry of a Prostitute (1974)
Also check out the documentary Eurocrime! The Italian Cop & Gangster Films That Ruled The '70s (2012)
Anything by Fernando di Leo. and I can come up with some others, but after I get off work. I've seen a few that are giallo-polizziotto crossovers or had elements of both that are good too.
Contraband(1980) - Not 70s, but Fulci directed it.
Pretty much any eurocrime film with Henry Silva in it is good.