jeffdgale Posted September 1, 2008 Report Share Posted September 1, 2008 I am in the process of servicing the cooling system on my 74 Avanti II with a 400 ci SBC. I need to replace the radiator hoses. The current bottom hose is a flexiable and the top appears to be from pieces of one or more molded. Anybody have any part numbers for good replacements that can be found a your typical auto parts house? I like to use molded for both if possible. Other suggestions are welcomed. Thanks Jeff. Link to comment Share on other sites More sharing options...
Gunslinger Posted September 1, 2008 Report Share Posted September 1, 2008 The part numbers I have for the lower hose are Gates #20046 or Dayco #70623. For the upper hose the number I have is Dayco #25480 but that's for an RQA. Your RQB may have a different hose but I don't know that for a fact. At some point Avanti Motors changed to a recovery system and got away from the expansion tank and that probably required different hoses. Link to comment Share on other sites More sharing options...
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