CompetititionPlus.com has confirmed with a sourece close to the situation that NHRA's Pro Stock cars will indeed go through another significant change in 2019. We are told next year will usher in the Mountain Motor Pro Stock cars into the 500-inch arena. Both combinations will run in the same class with the Mountain Motor Cars having the option of carburetors or electronic fuel injection. We are told an announcement could come either in the days leading into the NHRA U.S. Nationals or during the event.

The Mountain Motors are coming to NHRA U.S. Nationals #nhra https://t.co/nMobAo95Xg

— Competition Plus (@competitionplus) August 27, 2018

It's time for a history lesson about the last time the 500-inch Pro Stockers and Mountain Motors were combined in the same class. https://t.co/fEjOp2zd5V

— Competition Plus (@competitionplus) August 27, 2018