HemiXpress
Senior Member
- Joined
- Mar 31, 2015
- Posts
- 136
- Reaction score
- 22
- Ram Year
- 2015
- Engine
- Hemi 5.7
I remember hearing that the 6.4 is tuned for towing/hauling, not for street performance. So I'm not sure it'd give much advantage over the 5.7.
Seems to me, Dodge puts these motors in Challengers and Chargers all week long. All they would have to do is change the pcm to a performance version and add some good gears. You would stomp a 5.7. I know the 6.4 is rated at 485hp, at least for the Challengers and Chargers, but some have been getting 500hp on a dyno with no tune. .