will a radiator rated for the h22 fit in my car with the H23a1 in it

 

Pretty sure.

 

There are physical differences between the two, whether it's just core size and/or just the mounting points I'm not sure. But there definitely is a physical difference.

 

know where i can get a fluideyne for my H23a1

 

i know the fan mounts are different, not sure about what else


if you are looking for aftermarket.......search for the civic half size conversion thread

there is a write up for using the koyo half size radiator in the prelude.......it is plenty efficient for even turbo applications so you should be fine if you are worried about that......and it frees up a lot of space in the engine bay

 

the thing is, its like 4th and 5th gen exhaust systems.

you have to buy new fans and it will fit. its all h22 parts or all h23 parts. use h22 fans on the h22 radiator that will lock in. but you are spending money on a koyo/fluidyne, you can afford slim fans.

i know because i have both and installed both on my car.

 

i have a question, i just bought a Koyo Radiator for my 99 honda prelude and it didnt come with a cap... my stock one doesnt seem to fit and i dont want to force it on and use it and something else goes, so does anyone kow what radiator cap i should but and where can i buy it from??