I'm not sure where to post this but I'm going to be running a dual spring setup on my 12v..I have to use the smaller seals..I don't know exactly what I have but taking some measurements O.D. is .600 I.D.is .550 at the very base, inside it tapers down more..my question is what tollerance or difference is there suppose to be..not sure if I worded that right..but I'm sure you get my intent I hope..I measured the valve guide and have it written down but don't have it in front of me to give number on that..any help is appreciated..I did search but didn't find anything specific to this..
Thanks
Thanks