Freeze Plug Size

[07 HD]

:confused: Looking to replace freeze plugs in a 1955 Buick Special Series 40, 264 cu in V8, trying to purchase & everyone is asking for the size. Have looked in all books I have & there is no mentionn of size, if anyone can help that would be greatly appreciated.

Thanks Ted

[JZRIV]

Check out the Dorman website.

https://www.dormanproducts.com/cgi-bin/vm91corp30r/classdtl.p?clt=hwrap1&sid=pjbAibjZRaiBdidn014390121872273471&tid=25699&rid=0x001a5423#

Looks like they are listing 2 sizes. .750 and 1.563. I'd still want to verify this just for the fact that you are dealing with a 50 plus year old application.