I used cooling components fans on my 55 an on my 56 wagon they do a great job only take up 2/5/8 inches vintage air makes one that works well also
I have CCI on my 40 and my 53F100 and would on this Sunliner if they made one small enough. This 67 Mustang radiator is 16” high and 20” wide, CCI does not have one to fit. I will try the Spal 1600 cam on the aluminum shroud and see how it works.
Okiedokie... Derale makes a fan and shroud combo that measures the dimensions you indicated and it's 2100 cfm. The nice things about the Derale is its a 2 speed fan. I have my second speed on a sensor to kick on at 195 and it rarely hits it except for summer and ac on. Very quiet too. Part Number 16820 High Output Single 14'' Electric RAD Fan/Aluminum Shroud Kit - 20''W x 16 3/8''H x 2 3/4''D