I have a 91 crx and Im wanting to get rid of some wieght. I like how small those radiators are in the 92-95 civic hatches, but will they work in my crx? What do i need to get it in my car? Do I weld it in there or what?

 

Unless you angle the radiator back towards the engine, you will not be able to close your hood, as the 92-95 radiators are taller than the 88-91's. IMO, there are better ways of shaving off weight.