Valve Spring - Dual Spring / Damper - 400 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - SP-Series - Dual Spring / Damper - 415 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - Dual Spring / Damper - 430 lb/in Spring Rate - 1.160 in Coil Bind - 1.530 in OD - Set of 16

Valve Spring - Tool Room - Dual Spring / Damper - 475 lb/in Spring Rate - 1.160 in Coil Bind - 1.534 in OD - Set of 16

Valve Spring - Tool Room - Dual Spring / Damper - 470 lb/in Spring Rate - 1.160 in Coil Bind - 1.534 in OD - Set of 16

Valve Spring - 1300 Series Drag Race - Dual Spring - 964 lb/in Spring Rate - 1.215 in Coil Bind - 1.536 in OD - Set of 16