I have a 69 camaro with a sb and long water pump, nonthermal clutch with a 17 inch fixed 6 blade fan. Years ago I bought a BB radiator and I have been using my original sb fan shroud. I know it doesn't fit correctly but it works fine. Yesterday I was thumbing through the Ricks catalog, I notcied they sell a 23 inch fan shroud for sb with AC. Could I use this shroud on my 69?