www.damperdoctor.com Q: Were they used to be known as Damper Dudes?
While the dampers might interchange they're not all the same so check what you find for number of pulley grooves and alignment so you don't have to revamp your pulley system too.
Check the rubber real good too.
I also have a foggy memory of Chevy changing the timing tab which I think moves the timing mark on the balancer. That's easy to fix though.
