Don't leave out the part about ATI having several BB Mopar units--duh..which one? Different hub lengths --some will clear timing cover, some won't clear certain ones etc big PIA and the big deal with ATI is that they send them out from the factory too small on the ID--with all the different brands of cranks and the small side on the ID you usually have to have a shop HONE the indside for decent fit--yea they need to be tight but not THAT tight--measure before you go to install--if someone says they fit easy they had a China crank with the snout on the small side of spec..also ATI's run with no pulleys NEED BOLTS in the pulley holes per ATI instructions or they can come apart---READ the instructions and CALL them as they have enough choices to get you in the weeds with a quickie order.

ATI makes a 2 ring and 3 ring the 2 ring fits on without a spacer, no problem.

I cast my vote ferrr ....an OEM stocker !!

That aftermarket stuff is uNnecessary ...uNless you are racing at a "sanctioned" event.

If there ...I vote furrr SFI Hughes. I got a brand-new one off eBay ferr 70 beans ... delivered to my door !

I just published a piece about this topic entitled "Crankshaft Vibration Dampers 101" at The Dragtime News, along with other newly added items. Hope you like it.

Bob Beucler
DRAGTIME 1964 Dodge Polara
www.DragtimeNews.com

ANY of you YOUNGSTERS remember what happened from coast-to-coast when NHRA first mandated a replacement part(the alum hub was the most popular item) for the OEM dampner?

i have fluid dampners in all of my motors.never any problems.i was told the engine sees the fluid dampner weight as alot lighter than it's static weight.

...Not a BB, but fwiw, an ATI went back on this P5 R4 358 before I sold it ~3 yrs ago.