Beehive Valve Spring Kit - M8Caracteristicas: Made from premium stress relieved conical ovate wire Feature extremely high level of fatigue life Use a much smaller and lighter weight retainer to reduce valve weight and create quicker rev and smoother motion Designed to handle the demands of performance engines with 585" and smaller lift camshafts Kits include: Econo BeeHive valve springs, lightweight 7 steel retainers, machined heat treated chromoly spring seats, seat shims, valve