Originally Posted by Gabby63
It would be nice if you had a 4.350 taper ring to test your theory , place these rings in then measure . I bet you would not have the .015 required gap . The last set I used were large , not .060 large but no issues either . Gary


As a matter of fact, I have a 440 in the shop that is 4.350 bore and you are correct, they don't fit. (ends butt tight when squared in the bore)

Brian