Thanks, guess I’ll throw the hood on and measure just to be safe. I was looking at this radiator. 26" Big Block Mopar Radiator Says 23” but then gotta add the cap. Thinking that might be a bit tight.
The cap shouldn't add much, if I remember right other folks have used radiators that end up being 23-1/8", which is probably what that one will be. It would work on my car, but I would definitely measure before I pulled the trigger.