jeffdgale Posted September 1, 2008 Report 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.
Gunslinger Posted September 1, 2008 Report 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.
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