Used Champion 4 row aluminum radiator

[Bluemonster71RT]

Is this the one that does not accept the stock shroud?

[CudaMoparRay]

As far as I know none of the Champion radiators accept stock shrouds unless you fabricate or adopt something to their shroud brackets.
They do however have their own shrouds that are made to fit it.
That is probably why the prior owner had a Chrome shroud that attached via the radiator core with special ties. Seems to be common practice for people that like Champions but don't want to pay for or use their custom shrouds.
An example is this: http://sdparts.com/i-21232533-trans-dapt-performance-9454-radiator-fan-shroud-5-1-2-wide-x-20-diameter-chrome.html

[CudaMoparRay]

  Has been SOLD!