Engine radiator Koyo or Nissens

Koyo rad is top tier, as I’ve used them on all my drift builds.

Buy a Nissens one some of the other brands use weaker plastic or don't have proper seams

Mine didn't stop creeping up until I finally replaced the radiator. Nissens has been good over the last 2+ years.

Nissens is top notch, not cheap aftermarket stuff.

Nissens if you prefer to buy a new one, mine has been solid for over 5 years. I like the late model until '91 7/9 all metal Blackstone ones too if you're thrifty, I hoard them. I figure a metal rad won't just blow up and leave you stranded like a plastic end tank one will.

The nissens one. Yes they have plastic side tanks, but they're still good for 8-10 years. (Realistically you probably won't have the car that long) Replace it preventively. Very good for the price. If you go fully metal it'll corrode instead of pop so may as well get the one that's a fraction of the price and will pop 10 years from now. It's a quality unit and is the only direct no modification drop in replacement still available to my knowledge. Even has the thermal switch installed that was for some models with a auxiliary electric push fan.

I replaced my stock blackstone a few months ago with a Nissens from Rockauto. I am happy with it.

Nissens is good, put a long zip tie around the upper plug on the passenger side above the transmission fluid return, the plugs can push out.

Mine developed a small slow leak out of that nub two weeks after I bought it. Koyo gave me the run around on their warranty, insisting on photos of a destroyed radiator for replacement. I gave up. It’s a shame because it fit awesome and looked great.

Don’t use that shitty Nissens radiator. That always leaks, ended up returning mine.