Need help picking out a radiator prefer a off the shelf one SBC 2bbl Which Radiator?

My hot rod really needs a new radiator. It has a custom built one and it needs to be replaced but I was hoping to find one that is capable of cooling it off the shelf vs custom ordering one because I am running a pretty stock 350. I have a 350 with a 2bbl carb and fan off the waterpump that is clutchless. Very mild engine and I do use A/C.

My core dimensions are 28 x 16 x 2. I do have wiggle room in all directions. I want to stay with a copper/brass.

Do you guys think a radiator for a 454 or 455 Trans Am will cool my 350 ok?

Here is what I found. 454 Chevelle rad. 28.5 x 17 x 2 5/8

Trans Am 455 27.5 x 17 x 2 5/8

What do you guys think? Is there any larger stock radiators that you can think of?

Thanks.

any one of those radiators should work if the are are in good condition.make sure you have a shroud to pull air when not moving.good luck