Intake Valve - 6000 Series - 2.165 in Head - 0.3135 in Valve Stem - 4.900 in Long - Stainless - GM LS-Series - Set of 8 Brand- FERREA MPN F6279-8 . **NOTE: 8mm (.3135) Stem Diameter (GM LS3 ) Truck Freight- NO State Restrictions Canada Restrictions- NO Canada Shipping: Ships to Canada