Projects radiator inlet/ outlet sizes does it matter?

Got a question about radiator hose inlet and outlet sizes. Typical inlet size is 1 1/2". Typical outlet size is 1 3/4".
If the sizes were reversed ( now inlet @ 1 3/4".....and outlet @ 1 1/2" ) does anyone think it would have adverse effects on how the radiator would cool ?
I want to tip a crossflow over (must move fill next also). But by doing that my inlet/outlet sizes will be in the wrong places.

 

Anybody ? maybe it's a dumb question.

 

The answer is "maybe". If the radiator is plenty large, it should be fine.

 

There is no way to answer that question with out you also showing the pump performance curve of the water pump. It is alot easier to force water through a smaller pipe then it is to suck water through a smaller pipe. The smaller inlet may cause an increase in pump cavitation.

 

If the radiator cooling capacity is marginal, you may see a small temperature rise. What is the reason for the swap in size, an installation problem?

 

The size of the hole in the thermostat controls flow.