1.570 Dual Valve Springs Valve Spring - RAD-9000 Series - Dual Spring w/Damper - 560 lb/in Spring Rate - 1.100 in Coil Bind - 1.570 in OD - Universal - Set of 16

1.570 Dual Valve Springs Valve Spring - NexTek - Dual Spring / Damper - 575 lb/in Spring Rate - 1.215 in Coil Bind - 1.570 in OD - Polished - Set of 16

1.570 Valve Springs Valve Spring - RAD-9000 - Dual Spring / Damper - 510 lb/in Spring Rate - 1.200 in Coil Bind - 1.570 in OD - Set of 16

1.106 Dual Valve Springs 1300 Series Drag Race Valve Spring - 1300 Series - Dual Spring - 400 lb/in Spring Rate - 0.700 in Coil Bind - 1.106 in OD - Drag Race - Set of 16

1.570 Dual Valve Spring Set w/Damper (16pk) Valve Spring - Max-Life - Dual Spring / Samper - 644 lb/in Spring Rate - 1.150 in Coil Bind - 1.570 in OD - Set of 16