My 70 GMC originally had a straight 6 but was converted to 350 by a previous owner and a CU101 radiator was installed. Now with summer comming I would like to install a shroud rather than installing a expensive electric fan setup but can't find a shroud that fits. A shroud from LMC or Brothers is 28 1/4" wide where my radiator is 26 1/4" x 17 " x 2 1/2" ( 4 row ) Custom made ones are super big bucks so a factory shroud would be my first choice and if I have to go electric I've heard with a four row it's best to keep the blade and use a pusher electric in front. Any thoughts or ideas would be helpfull.