Don Dalton Posted December 12, 2016 Report Share Posted December 12, 2016 Can anyone tell me if I need to find a 1.25 diameter 1/8 or 3/16 freeze plug to seal this hole ? Is there a source to purchase ? Or is there a heater hose delete adaptor needed . Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted December 12, 2016 Report Share Posted December 12, 2016 Expansion plug. Quote Link to comment Share on other sites More sharing options...
pontiacguy Posted December 13, 2016 Report Share Posted December 13, 2016 Yep, thats what it should look like. My freeze plug came in a freeze plug kit. I got it from Bernbaum. It was pretty reasonable. It installs with a ball peen hammer. I am pretty sure the procedure is outlined here on the forum. The service manual or a period Motors Manual will also have the installation procedure. Quote Link to comment Share on other sites More sharing options...
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