I have a civic EK with a GSR swap. Im trying to get my heater working. Everything is still on the car. Core, and stock heater hoses. Only issue i have is with one of my heater hoses not fitting properly. "it is leaking really bad and has a kink it in" I need to no what hose i can use for it to fit properly. It the heater core return hose. Not the hose that connects to heater control valve.

 

Either order one for a gsr or eliminate the pipe under the throttle body and go straight from the heater core outlet to the water pipe on the back of the block with a straight piece of 5/8 heater hose.

 

So a GSR hose will fit?

 

Just measure the diameter of it and go buy one at Lowes.