I have an ATI on my hemi, no problems. up
I have a 15+ year old Fluidamper on my Indy headed 440...no problems. up

I had a BHJ damper on a 440 once. It slipped the outer ring after the first trip to the track. down

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax