Seriously it is the Australian Hemi Sixpack. 265cid.
"All you have heard about the incredible Chrysler Charger R/T E49 is true. At the time of E49s release, it's 302hp treble Weber 6 Pack Hemi was the most powerful production 6-cylinder engine in the world. A little known factory option was a Bathurst cam, which upped the power to a rather healthy 325hp! The 265 Hemi 6 Pack engines also have a magnificent spine tingling howl all of their own."