An aluminum block, steel liners and custom engine calibration.
Mopar have been showing off their 2015 Mopar Challenger Drag Pak test vehicle at the National Hot Rod Association (NHRA) U.S. Nationals.
Sportsman racers were able to put questions to the engineers and some drag racing legends.
The car includes the 2015 Dodge Challenger SRT front and rear fascia trim, rear spoiler and a full roll cage.
Powering it is a 426 cubic-inch Race HEMI® engine with an aluminium block with a Chrysler-based 727 automatic transmission, race-style stick shifter with integral line lock, and a weigh box in the trunk.
Inside is similar to the 2015 Dodge Challenger SRT interior with extra Mopar gauges, driver and passenger lightweight racing seats and five-point harnesses.
It sports 15-inch front and rear wheels, 28-inch diameter drag style front tires and 30-inch diameter rear tires (9-inches wide).