FWIW I just thought I’d post some info regarding a dual electric fan combo that is used to good effect by a number of Mopar owners here in Australia when running a modified engine and aluminum radiator. These are an OE Fan package from a Ford Falcon AU 5.0l which have a cfm rating of about 3500 cfm which are packaged with an integrated shroud. With the right radiator they really do perform a good job in keeping an engine cool when idling in very hot conditions (>100 degrees F) The photos below are with them mounted on a locally fabricated radiator using a 2 row Griffin core in a local A Body Chrysler.
I’ve included an eBay link to give you some idea of pricing as well
New Thermo Fan Assembly fits Tickford TS50 AU 5.6L Petrol Synergy 2001 - 2002 | eBay
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