1.625 Dual Valve Springs - (16) Valve Spring - 1300 Series Drag Race - Dual Spring - 629 lb/in Spring Rate - 1.100 in Coil Bind - 1.625 in OD - Set of 16

1.625 Dual Valve Springs - (16) Valve Spring - 1200 Series - Drag Race Series - Dual Spring - 629 lb/in Spring Rate - 1.100 in Coil Bind - 1.625 in OD - Drag Race - 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

1.550 Dual Valve Springs - (16) Valve Spring - 1300 Series Drag Race - Dual Spring - 644 lb/in Spring Rate - 1.150 in Coil Bind - 1.550 in OD - Set of 16

1.514 Dual Valve Springs (16) Valve Spring - 1300 Series - Dual Spring - 863 lb/in Spring Rate - 1.160 in Coil Bind - 1.514 in OD - Set of 16

1.500 Dual Valve Springs - (16) Valve Spring - 1300 Series Circle Track - Dual Spring - 467 lb/in Spring Rate - 1.180 in Coil Bind - 1.500 in OD - Set of 16