Dual Valve Spring Kit GM LS w/Steel Retainers

Dual Valve Spring Kit GM LS w/Steel Retainers Valve Spring Kit - Dual Spring - 400 lb/in Spring Rate - 1.070 in Coil Bind - 1.320 in OD - Steel Retainer / Viton Seal / Steel Valve Locks / Steel Seat - GM LS-Series - Kit