72 Dart Swinger 3.6L Pentastar +T5

5.7 hemi said
The 8 speed is behind a Hellcat, so I’m sure it’ll handle a twin turbo cranking out 600hp.

The v6's 8 speed is a different, lower Torque rated model ZF trans than what's in the Hellcat.
The v6 8speed trans is rated for ~331ftlb vs the Hellcat's 664ftlb