BBCorv70

I installed SS brake lines last year, mainly for cosmetic reasons. A bit over twenty years ago I had installed steel lines while the body was off. The steel lines had started to rust quite a bit in front of the rear wheel and in a few other places. They weren't rusted enough to be concerned with failure, just looked bad. My motivation for going with SS was to keep them looking good. I don't like doing work over again.

No problems with leaks. I think at least part of the trick was to make sure the lines were aligned correctly with the brass blocks before tightening the fittings. I made sure they were as square with the brass block as possible before tightening. Replaced the two brass blocks in the rear to further encourage a good seating.

bj1k

Alignment was not an issue with my stainless lines . I always start the threads a few turns before even putting a wrench on them. The seats were all of the way down to the point of breaking with any more pressure but still refused to seal. It's hit and miss with stainless . Most of my joints sealed the first time but I was unlucky enough to have one and it was in a tight place to get at too. This is never a problem with regular lines.

BBCorv70

Was it the brass block at the end of the long line to the rear? I installed a new block, tightened the connections while it was floating. Installed the clip afterward. When I mentioned alignment, I made sure the line was square to the brass block, threaded the fitting down with no resistance. Did you replace your brass blocks or reuse the originals?

Mine all sealed up fine. The SS fuel line from pump to carb I tried earlier did not, no amount of tightening would seal it. That was my first experience with SS lines. I didn't take the time to tweak the line so it was perfectly straight going into the fitting. Probably damaged the flare.

Seems not everybody has the same experience with these lines. Could it have been the manufacturer?