They were installed but never used (the heads were damage) They have the retainers but seems to be 3 different kinds, I could include them if you want, but I will advise against installing different retainers. Reason for selling: I just cut them off the budget for the build up.
Follow Ups
Gauging interest in Ferrea valves 1mm over with dual springs - puchy09:55:51 07/26/09