Valve Spring - 1200 Series Circle Track - Dual Spring - 743 lb/in Spring Rate - 1.055 in Coil Bind - 1.570 in OD - Set of 16

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

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

Valve Spring - 1300 Series Circle Track - Dual Spring - 743 lb/in Spring Rate - 1.130 in Coil Bind - 1.570 in OD - Set of 16

Valve Spring - 1300 Series Circle Track - Dual Spring - 743 lb/in Spring Rate - 1.035 in Coil Bind - 1.570 in OD - Circle Track - Set of 16

Valve Spring - NexTek - Dual Spring / Damper - 534 lb/in Spring Rate - 1.190 in Coil Bind - 1.570 in OD - Polished - Set of 16