Vibration dampner 1969 383

[Aloha Randy]

I am just checking part numbers on an engine that is in my early build 1970 Dodge Challenger. I have a number of 83184-274-9 on the existing balancer. Does anyone havea reference book that would tell me what this one is? I have found some mismatched parts on this non original engine and wanted to verify this since I have it on the bench now. Thanks!