Yeah, it’s got a Hemi. In fact, it’s got the biggest Hemi currently available. Motivation for the 2006 Dodge Magnum SRT-8 comes from a 6.1-liter V8 that provides 425 horsepower at 6,000 rpm and 420 lb.-ft. of torque at 4,800 rpm. The block is cast iron and the cylinder heads are aluminum. A five-speed automatic transmission with Dodge’s Autostick manually interactive feature is standard.