The current 6.1L HEMI has been the heart and soul of Chrysler’s SRT-8 line since 2006. It packs 425-horsepower and 420-lbs/tq. and pulls like a hammer. Over the last four years we’ve also heard about Chrysler’s 6.4 liter HEMI and those of us with SRT’s have literally been drooling at the mouth in the hopes that this engine would find itself in the new upcoming crop of SRT-8 models. The engine, as of November and according to Ram trucks chief Fred Diaz, was originally supposed to appear in Ram’s heavy-duty trucks. Now however things seemed to have changed as Joe Veltri, Chrysler VP of product development stated that the new engine was designed not for heavy hauling, but for performance and will indeed be the mill of choice for hopeful SRT-8 owners.