Try a '95 Integra GS-R hose? I just used the OE hoses with my swap ('95 B18C1 into a '92 CX hatch) and the GS-R stuff fit just fine. The diameter of the hose is slightly larger so you need to use a worm clamp (typical radiator clamp, not the OE pin ones) to tighten it on the Civic radiator spout. Retighten it about every 2 weeks for a while as they tend to loosen when forced to do that.