paul j
Well-known member
I bought new rings and was sold Sealed Power E-647KC and was planning on using E-522KC which is what my research showed was correct for '91. After more research on the difference I come up with E-647KC was used from 5/92 on with 3rd ring chromed carbon steel. The E-522KC ('91) has stainless steel 3rd ring with 1 and 2 staying the same materials. Is there any reason not to go to the newer released E-647KC? The ring measurements are listed as the same. The engine and turbo are stock but I would like to put go 16g if I can find one.