All the Twin Cam heads lack in flow characteristics and need attention there. The 05 heads where changerd to a smaller valve stem which put a bind on them for a while till valve makers made larger and lighter valves with the smaller stems. The valve springs also changed in 05 to a Bhive style spring...I know there are S/E high performance replacment Bhive springs but they might be limited to a certian lift. Dewey or BigBoyz woulkd know more on this subject.dzlfitr said:is there any particular year of twin cam head to
stay away from? I'm gonna pick up some for a winter build
and was curious. The heads will be worked over.
thanks.
dzlfitr
Actully I think the seal is filling up with oil and running in the guide....Springer did a good artical and pictures to boot on whats happening with this new design...search it out its very informitive.Ray galetti said:On the 2005 cylinder heads with the bee hive springs, Harley is having a failure issue with the valve stem seals. There is a new stem seal being used, and it is blue in color. Although the dealer will not explain the issue, I believe the spring is grabbing the seal and lifting it off of it's seated area.
There are no blue valve seals. There are orange seals and green metal rings. If you would like to understand the problem, here is the link http://www.v-twinforum.com/forums/showthread.php?t=63946Ray galetti said:On the 2005 cylinder heads with the bee hive springs, Harley is having a failure issue with the valve stem seals. There is a new stem seal being used, and it is blue in color. Although the dealer will not explain the issue, I believe the spring is grabbing the seal and lifting it off of it's seated area.
2 email to who? Send me a PM if you are having a problem getting through. I know Bean answers his email in the evenings. But he is available during the day usually at the number on the ad.dzlfitr said:HMMMMM..... must not be anybody home
up there in Maine. sent 2 e-mails, and no reply.
Go figger.
Assuming you mean SAME, yes they are.duhast said:Are balanced motor and non-balanced motor heads the dame?
Have you received replies yet?dzlfitr said:HMMMMM..... must not be anybody home
up there in Maine. sent 2 e-mails, and no reply.
Go figger.