Originally Posted by
Road Fan
Honestly, I don't think we even have clear evidence that the chainset is Super Record or something older. And if the cups were for Super Record, the cup is made for 3/16" balls, and hence ¼" balls are not going to fit the races right, and the lateral relationship between even a correct spindle and the cups (hence the frame) will not be right.
I don't think that really matters. Super Record cranks only differed in the chainrings; the arms were standard Record arms and will work with a standard Record bottom bracket.
OP states the bike has a Record bottom bracket with an anomalous Shimano spindle:
Originally Posted by
tfisherak
Bought a 80’s Colnago Master with a Record bottom bracket that had a Shimano Dura Ace spindle. […] The current B.B. is 36 x 24f Italian threads and spindle is 111mm with 70mm shell.
So, all that is really needed is the proper Campagnolo spindle for the Record cups, which should be a 70-SS or 70-SS-120, depending on whether the arms are pre- or post-CPSC:
http://www.os2.dhs.org/~john/campy-BB-specs.pdf