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

Valve Spring - Performance Street - Dual Spring / Damper - 347 lb/in Spring Rate - 1.175 in Coil Bind - 1.509 in OD - Each

Valve Spring - RPM Series - Dual Spring - 425 lb/in Spring Rate - 1.055 in Coil Bind - 1.280 in OD - GM LS-Series - Set of 16

Valve Spring - Dual Spring / Damper - 300 lb/in Spring Rate - 1.125 in Coil Bind - 1.437 in OD - Set of 16

Valve Spring - Max Effort - Dual Spring - 375 lb/in Spring Rate - 1.050 in Coil Bind - 1.437 in OD - Set of 16

Valve Spring - Dual Spring - 283 lb/in Spring Rate - 1.025 in Coil Bind - 1.437 in OD - Set of 16