I have managed to destroy my '71's radiator. Does anybody know if I can swap in a three row from a later year, like a '78 or maybe even a '81?

Don't know about the ZX, but the 280 radiator will work. It will hang below the radiator support a few inches though as the core is taller. You will also need a different bottom hose IIRC.....

The 280 rad will have the whole bottom tank hanging below the radiator support, so if you have a stock valence it will show, if you have an airdam it will hardly be noticeable.

That's good news, thanks!

I have the car low enough that I don't think the extra "depth" will be hardly noticed.

The only bad news is the 280Z stock replacement radiator is a 2 row... just a larger core.

FWIW, Motorsport Auto's 3 row radiator isn't much more expensive than most of the original replacements you will find. They also have a 4 row but that is getting into the expensive radiators.

You can also use a Chevy style aluminum radiator from someone like Jegs or Summit Racing, you just need to find the one with the closest measurements....

Look out for one from a 260Z 2+2 auto with air cond , it should be a 3 row type and grab the bottom hose as well.

I live in the southwest, and it seems all the ones that I have found used or are new from the radiator shop are three core ones. Supposed that was to keep them from overheating?

Oops, I totally forgot the A/C equipped cars had a 3 row, but as to which year they started installing the 3 rows, I'm not sure, perhaps in late 74? I had a 73 with A/C many years ago and it had only a 2 row.

3 row is better than a 2 row, but, since you live in the southwest, it might not be a bad idea to spend the extra and get a 4 row, especially if you plan on using A/C....Better to spend a little extra on a radiator than to replace a warped head if it overheats.

I did have a small problem when sitting in traffic this summer, but just added a bottle of redline water wetter to the system and it worked great! No more overheating, even in 110 degree heat!

It looks like I have all sorts of options for the new radiator, thx!

But I do think it I would like to get a front spoiler to "hide" the larger radiator, know of a good used one anywhere? ( I'll ask in the wanted section)