Apparently GM now uses quick disconnect AC fittings (similar to fuel fittings). Anyone know where to get them or anyone that can make them? Looks like I'm going to need some custom A/C lines on my swap.

Sounds like a GOOD IDEA ! anyone making the 3800 conversions should "Incorporate" this "Feature" into their hoses !

i would not use anything quick disconnect in the a/c system because once you have the stuff in it the second you pull that line all of it will go into the air.

same thing with fuel, you're supposed to DE Pressurize it first , otherwise it will blow up in your face.

maybe you have a different idea of incorporating it into a swap, but i can't see any benefit to adding them to the line that needs to be made for swaps. Unless you're planning on changing out all of the fittings in the current A/C system, it's totally not worth it IMO