Thanks to all who replied. I found some info at www.kb-silvolite.com that answered my question. Here is an excerpt ( in case anyone else had the same question).
Occasionally lockring trouble is incorrectly attributed to a piston pin being either too short or too long. The fact the lockrings can...
Thanks for the info, Tmoose. One thing that I forgot to mention is that the groove in the piston for the retainer appears to be rectangular. Apparently Ford used round wire clips as well as square edged "E" clips on these engines. I have tried without success to determine if the grooves were cut...
I am rebuilding a 1957 Ford 312 which has very low miles on it and the original pistons are in excellent shape, hence , I would like to re-use them. These pistons came with full floating pins held in place with a round wire "G" shaped clip. For obvious reasons I do not want to re-use these clips...