16" champion electric fan and shroud, any good?

If that is your only issue with mechanical fan, I can ALMOST guarantee you will have big problems when you go with the electric.

Do a search and see how many " my car is overheating" threads then how many if those are using electric fans.

It is ok for an engine to get a few degrees hotter while ideling or on really hot days.

The OEM put a range on the temp guage for a reason