The fan that solved my 7 year hot issue was 19.5" from tip to tip, 7-blade, clutch fan. If you ever go milling through a bone yard this exact fan came on MANY GM vehicles, we've found them on mid 80's V-c w/ a/c on Camaros. Also on most ALL full size GMC vehicles etc. And yes, the 19.5" 7 blade clutch fan does fit inside a stock shroud on FGF...