[Formulajones]

Like I mentioned, to mount the radiator without the shroud, the best solution I've found is the upper core support plates that are used on Camaros, Chevelles, Novas etc..... They come in different widths.

That's how I did dad's GTO back when he was experimenting with electric fans. His radiator is also encased in the factory shroud and used to hold the radiator by bolting to the upper core support. With that gone, it was just as simple as bolting a Chevelle upper radiator support to his existing core support holes and it holds the top of the radiator as designed, and looks stock. Very easy to do. I didn't have to drill anything. In fact when he decided to go back to his clutch fan and stock shroud, it was as simple as removing that top Chevelle plate, sticking the radiator back into the factory shroud and bolting it down. Literally a 10 minute process.