The Dodge Challenger SRT Hellcat returns as the quickest, fastest and most powerful muscle car ever. Propelled by the supercharged 6.2-liter HEMI V-8, its 707 horsepower rating is highest of any V-8 engine in FCA US celebrated history. The supercharged HEMI engine can be mated with the six-speed manual transmission or the beefy TorqueFlite eight-speed automatic.

This HEMI® Hellcat engine is Dodge and SRT's first application of V-8 supercharger technology, delivering the full brand experience with fresh potency.
 
This breakthrough supercharged engine features a forged-steel crankshaft with induction-hardened bearing surfaces. The result is a crank so well-engineered it can withstand firing pressures of 110 bar (1,595 psi) - the equivalent of five family sedans standing on each piston, every two revolutions. And its unique, specially tuned crank damper has been tested to 13,000 rpm.
 
High-strength, forged-alloy pistons - developed using advanced telemetry measurement - are coupled to powder-forged connecting rods with high-load-capacity bushings and diamond-like-carbon-coated piston pins.
 

The Dodge Challenger's segment-first TorqueFlite 8HP70 eight-speed automatic transmission delivers world-class precision and fuel efficiency, along with a new electronic shifter, Sport mode and paddle-shifting capabilities for more performance, as well as an improvement in fuel economy. Once limited to sedans costing twice as much, the Dodge Challenger democratizes this exclusive world-class technology, offering the TorqueFlite eight-speed automatic transmission standard on every V-6 model.
 
The Challenger SRT Hellcat puts its power to the ground via the upgraded TorqueFlite 8HP90, which features maximum engine-torque capacity and 160 millisecond shifts with rev-matching.