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

Valve Spring Kit - Conical Spring - 519 lb/in Spring Rate - 1.175 in Coil Bind - 1.332 in OD - Steel Retainer - GM LS-Series - Kit

Valve Spring Kit - Conical Spring - 519 lb/in Spring Rate - 1.175 in Coil Bind - 1.332 in OD - Steel Retainer - GM LT/LS-Series - Kit

Valve Spring Kit - Beehive Spring - 386 lb/in Rate - 1.181 in Coil Bind - 1.077 in / 1.282 in OD - Chromoly Retainer / Steel Valve Locks / Rubber Seals / Steel Seat - GM LS-Series - Kit

Valve Spring Kit - Dual Spring - 427 lb/in Rate - 1.150 in Coil Bind - 1.301 in OD - Titanium Retainer - Viton Seal - Steel Seat - GM LT/LS-Series - Kit

Valve Spring Kit - Dual Spring - 427 lb/in Rate - 1.150 in Coil Bind - 1.301 in OD - Steel Retainer - Viton Seal - Steel Seat - GM LT/LS-Series - Kit