Horsepower Northwest built this 1979 Plymouth Trail Duster called “Hellduster” at their company in Bremerton, Washington. In front of the custom firewall they swapped a supercharged 6.2 L Hellcat V8 producing 707 hp (519 kW) and 650 lb-ft (881 Nm) of torque. That power is transmitted through a NAG1 five-speed automatic transmission and Atlas transfer case to Dynatrac axles. The powertrain is supported by a boxed and reinforced chassis. On the inside Horsepower Northwest installed Redline Gauge Works gauge cluster, Restomod AC system, and modern Mopar rotary transmission shifter.
Source: Horsepower Northwest