<p class="font-claude-response-body break-words whitespace-normal leading-[1.7]">The Dodge Challenger Engine has evolved significantly across generations. The 2008 revival launched with a 5.7L HEMI V8 producing 370 horsepower. By 2011, the 6.4L 392 HEMI arrived delivering 485 horsepower. The 2015 SRT Hellcat introduced the 6.2L Supercharged V8 generating 707 horsepower, later upgraded to 717 hp. The 2018 Demon variant pushed output to 840 horsepower on race fuel. Entry-level trims offered a 3.6L Pentastar V6 with 305 horsepower. All performance variants pair with either a 6-speed manual or 8-speed automatic transmission. The final 2023 Last Call editions reached 807 horsepower. The Dodge Challenger Engine represents the peak of American muscle car engineering.