master cylinder: "Raybestos MC390541" need an adapter for the front line. both brake line holes are 1/2" on new master cylinder so you need to adapt 1/2" to our 9/16" line. i used "AGS Brass Adapter 9/16-18 I to 1/2-20 I BLF26C" ebay or advance auto for this part. thats all there is to it. throw the adapter in front hole put lines on and done. brakes work amazing now. follow instructions for bench bleeding master cylinder.
Thanks for the info. I will be doing this swap soon.