Dual Valve Springs - 1.500 Valve Spring - Max Effort - Dual Spring - 475 lb/in Spring Rate - 1.040 in Coil Bind - 1.500 in OD - Set of 16

1.500 NexTek Dual Valve Springs Valve Spring - NexTek - Dual Spring - 800 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

1.500 Dual Valve Springs - (16) Valve Spring - 1300 Series Drag Race - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

1.500 NexTek Dual Valve Springs Valve Spring - NexTek - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

1.500 NexTek Dual Valve Springs Valve Spring - NexTek - Dual Spring - 797 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16

1.500 Dual Valve Springs - (16) Valve Spring - 1300 Series Drag Race - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Set of 16