Woody,
I too bought CPP's 6 lug kit for my 54. I spent many hours fixing their mess. While there is nothing structurally wrong with their kit, if it is installed by someone without the skill to fix the mess or someone that thinks that just because it is provided by a "professional supplier" it will perform great, I am sure poor performance will be the results. This would manifest itself in short pad life and less than optumum braking.
The problems I encountered are documented in my build pictures.
I was also shipped the wrong caliper brackets. They sent me passenger car brackets. When I called their support, they as much as told me I did not know what I was doing and that they do not make shipping errors.
I am not saying do not buy CPP, just be aware of the potential problems.
In hind sight I would have purchased a bracket kit and bought the rest of the parts locally. I did not know a bracket kit was available at the time.
