My radiator is macked bad it was leaking coolant yesterday so i am going to put in a new one today. My cousin got a integra 91 he got a new rad will his old one fit in my 90 civic hb?

 

i believe it will be too big... i mean you can measure it and all...

but when i put a aftermarket crx radiator in mine (suppose the same size as stock) i had problems... in the bottom half of fitment....

IMO you should take the old broken one from you civic hb and compare size and length w/ the 91 da teg...

 

The DA radiator dropped right into my hatch w/minor mods. I had to use a radiator cap that didn't have a pressure release and remove a little plastic from the fan to clear the header. If you got a b-series the hoses will match up size wise. If you got a d-series you'll need a bigger inner diameter hoses and you'll need hose clamps to tighten it.

 

Yeah, I have a 92 LS rad in my rex, I just had to sacrafice the right side upper mount. But witht he left its in there nice 'n snug. Quite a big thicker than my cheap plastic top stocker. I used an 84 Accord upper hose if I'm not mistaken. - Darrell

 

Yea i did it today i swapped my cousins 91 integra rad into my std civic 90. It was farley easy it was smoken for a little bit but only because we got coolant on the the engine but now it seems to be running fine. Hopefully i wont have any problems in the next couple days. I have pics of it in their and pics of my cousins turbo setup. Ill post them in a few hours