does anyone know of a place or website that sells new OEM engine wiring harness's. i need one and i searched and no luck so far.

for what?

Painless Wiring might be a good place to start. Or you could just rewire yourself, it isn't all that hard.

I will guess it is for a k10, I have bought a couple over the years from my local wrecking yard. he gets a lot of chevy pick-ups in and I just find a good harness 20-25 bucks.

Painless wiring does have them, but you are going to pay for it. depending on your year,

http://www.northernautoparts.com/SearchResults.cfm this is year specific
universal is http://www.northernautoparts.com/SearchResults.cfm
or here is their website
http://www.painlessperformance.com/webcatalog/index.php

sorry...it is an 81 k10 w/o AC

i have been to the junk yard....havnt found the right one

finding the right one in a yard is a pain somtimes. once I had to change the wire location on one. they just pop out and swap them to match your setup. worked for me at the time. now i have wired it myself and that way you just run the circuits that you need.