Hmmmm I'm not sure. There is a bunch of cubic inch differance from a 6.2 And a 426......i would think if it would support a 426. They would not put a larger blower on the demon when it's the same size motor
What's a 6.2 377 or so. inches?

1970 barracuda convert. 1 of 59
1970 pro street A.A.R. clone (panther pink)
1971 charger
2015 hellcat challenger. Redline red
2014 quad cab 4x4 ram 8 speed hemi