Radiator upgrade

I want to upgrade my radiator to the one and three eights Murray

But.... I live in Canada and Oreillys autoparts wont ship here... is there another radiator you would suggest?

my question is now more leaning to an 1 inch core or inch and a quarter core from rock auto on 99 gt ?

Look at a mid-90s Monte with 3.4 DOHC. It's what I've got and they have a larger than 1" core.

Correct i have a 96Z34 monte and it had the larger radiator. direct swap.

I read about that rad upgrade but that was posted a long time ago, they sell 1 1/4 listed for grand prix now...

the extra 1/8 is not much of a concern for me, its only a GT but has 360,000 km, would like to keep it nice and cool from now on

I ordered the 1 1/4 from rock auto, they sent me a 5/8 by mistake.. they said just keep it and they will send me the 1 1/4 sorry for the mistake

I guess i have an extra rad?

Is it a good idea to replace the hoses as well ?

Hoses swell and will burst over time. So, why not while it's out? Cheap insurance against future headaches.