Valve Spring - SP-Series - Dual Spring / Damper - 360 lb/in Spring Rate - 1.060 in Coil Bind - 1.440 in OD - Set of 16

Valve Spring - Performance Street - Dual Spring / Damper - 347 lb/in Spring Rate - 1.175 in Coil Bind - 1.509 in OD - Set of 16

Valve Spring - Dual Spring / Damper - 376 lb/in Spring Rate - 1.040 in Coil Bind - 1.519 in OD - Set of 16

Valve Spring - Race Street - Dual Spring / Damper - 354 lb/in Spring Rate - 1.160 in Coil Bind - 1.550 in OD - Set of 16

Valve Spring - Single Spring - 293 lb/in Spring Rate - 1.125 in Coil Bind - 1.400 in OD - Set of 12

Valve Spring Kit - Dual Spring - 378 lb/in Rate - 1.070 in Coil Bind - 1.295 in OD - Titanium Retainers / Locks / Seals - GM LS-Series - Kit