Looking for a race quality non fluid dampener

MMissile said
ATI is the standard in NHRA stock/superstock racing. All my engines get one.

ATI, gotcha. Specific model number? The ones I seen at Summit all have notes of being extra thick by some degree.

justinp61 said
I have a 5” aluminum crank pulley and had to make a spacer to align it with the wp pulley. I can measure to the belt off the balancer if you need it.

Thanks! But no… it’s not the belt size, just the damper thickness I’m looking for. I have (IIRC) the amoroso small diameter crank pulley as well. Here’s a picture…
I want to keep the stock thickness of the damper if I can since everything lines up now. I just don’t know what damper will or will not copy the stock thickness.