Details about the supercharged 6.2-liter HEMI® V-8 and powertrain in the 2018 Dodge Challenger SRT Demon: Displacement: Supercharged 6.2-liter V-8 Construction: Deep-skirt cast iron block; aluminum alloy heads with hemispherical combustion chamber Output: 840 bhp (626 kW) @ 6,300 rpm; 770 lb.-ft (1,044 N•m) @ 4,500 rpm with Direct Connection Controller and unleaded 100 octane minimum […]