The never ending K5 Build LS Swap

[72K5CSTDarkOlive]

Engine back in. Made some cosmetic changes. I fired the engine up and ran it for a few minutes but wasn't ready for a test drive cause I had no brakes. Made good oil pressure, no unusual noises, so far so good. I spent 2 weeks messing with my brakes. Air was getting in somewhere and for the life of me I couldn't locate it. There was no visual leaks of any kind. I tried using a new MC and prop valve and the same thing kept happening, pedal would sink right to the floor with no pressure. I did the two man bleeding process, I used one of those mityvacs, and I even tried reverse bleeding sending fluid back to the mc from the bleeder valve. I was completely stumped.

I decided to replace the lines at this point. Went to local parts store, bought 25 ft of 3/16 brake lines and new union fittings and started making new lines. After doing all that the brakes started building pressure right away and was able to bleed them.