Individual Ecotec Valves
These are brand new GM/ACDelco LNF valves, sold individually. If you need a complete set of valves, you would have to order quantity 8 each of the intake and exhaust.
Exhaust valves: Sodium-filled stainless steel Inconel - A GREAT upgrade for the LSJ.
They work fine in LNF, LSJ, LHU, LDK applications