what do i need to swap a gsr engine into my crx non si i alredy have the engine and the tranny.what harness do i use to make this work

 

You have to convert your stock crx harness to multipoint, then add the necessary wires and plugs to it for vtec, IAB, knock, etc.

This has been covered thirty million times on the internet. Nothing a half a second of searchin wouldn't fix.

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DPFI to MPFI conversion, or dual point to multi point conversion
Then after that, depending on what ecu you use, get some pinout info for vtec, vtec pressure, etc.

 

where could i get the harness conversion if possible

 

you could check out rywire.com. He's on h-t as droppedcrxsi

 

I did a B18 swap in mine (91 CRX hf) and needed no mods to the harness. I think only Si and hf models are MPFI from factory.