Valve Spring - Single Spring / Damper - 462 lb/in Spring Rate - 1.200 in Coil Bind - 1.525 in OD - Set of 16

Valve Spring - Dual Spring / Damper - 455 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - NexTek - Dual Spring / Damper - 435 lb/in Spring Rate - 1.170 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - Plus-Series - Dual Spring / Damper - 420 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - Dual Spring / Damper - 440 lb/in Spring Rate - 1.170 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - Plus-Series - Dual Spring / Damper - 440 lb/in Spring Rate - 1.120 in Coil Bind - 1.530 in OD - Set of 16