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Discussion Starter · #1 ·
I have a radiator from a 1990 454 ss in my project truck and I am trying to connect up some -6AN hoses to it. I have already wasted like $30 in mail order adapter fittings based on internet experts opinions that don't work. Can someone tell me what adapter fitting will work for sure? I just tried a -6 Male to 1/2"-20 Male and it was too small in the radiator.

Any help would be appreciated. At $7-10 a piece these AN fitting companies must be making a killing. :throw:
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