1971dave Posted February 22, 2022 Share Posted February 22, 2022 Looking for air intake for a RD 450 180hp. Any help I can get ,thank you for it. Quote Link to comment Share on other sites More sharing options...
oleman Posted February 25, 2022 Share Posted February 25, 2022 The RD450 was the work horse of the heavy duty IH line of trucks before diesels took over. Depending on application there were numerous air intake and filter configurations. 1 Quote Link to comment Share on other sites More sharing options...
Binderoid Posted March 2, 2022 Share Posted March 2, 2022 What exactly are you looking for? The manifold or parts ahead of the carburetor? 1 Quote Link to comment Share on other sites More sharing options...
1971dave Posted March 7, 2022 Author Share Posted March 7, 2022 I have no numbers to give for the intake,but I do have the carb numbers. And they match the holley 4 barrel. So I need a intake manifold for a RD450,that will take a 4 barrel carb. Quote Link to comment Share on other sites More sharing options...
1971dave Posted March 7, 2022 Author Share Posted March 7, 2022 This is a image of the intake. That is a 4 barrel. The numbers match a Holley 4. This all goes on a 65 R185 fire truck. The door reads that it is a 193.7 hp. Not sure if this helps. Quote Link to comment Share on other sites More sharing options...
int 504 Posted March 10, 2022 Share Posted March 10, 2022 Four barrel was usually on 501. Quote Link to comment Share on other sites More sharing options...
1971dave Posted March 10, 2022 Author Share Posted March 10, 2022 I have started to believe there are no barrel intakes for a RD 450.. I was starting to believe,then I have seen for sale RD450 with a 4 barrel intake. Yes a 7.3 liter with a 4 barrel carb. I bet they are used on a performance basis, because each time I see this style ,it is on trucks like fire trucks. Is is not my engine or my pic. But it is a 450 with a 4 barrel. Still looking for a intake please. Quote Link to comment Share on other sites More sharing options...
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