1.550 Spring Cups Valve Spring Locator - Inside - 0.062 in Thick - 1.535 in OD - 0.635 in ID - 0.750 in Spring ID - Steel - Black Oxide - Set of 16

Valve Spring Cups- 1.550 x 1.680 OD x .577 ID Valve Spring Locator - Outside - 0.060 in Thick - 1.680 in OD - 0.577 in ID - 1.550 in Spring OD - Steel - Black Oxide - Set of 16

1.550 Dual Valve Spring Valve Spring - 1200 Series - Dual Spring - 540 lb/in Spring Rate - 1.180 in Coil Bind - 1.550 in OD - Circle Track Endurance - Each

1.550 Dual Valve Springs Valve Spring - Dual Spring / Damper - 508 lb/in Spring Rate - 1.080 in Coil Bind - 1.550 in OD - Set of 16

1.550 Dual Valve Springs - (16) Valve Spring - 1200 Series - Dual Spring - 663 lb/in Spring Rate - 1.150 in Coil Bind - 1.550 in OD - Drag Race - Set of 16

1.550 NexTek Dual Valve Springs Valve Spring - NexTek - Super Finish - Dual Spring - 618 lb/in Spring Rate - 1.150 in Coil Bind - 1.550 in OD - Set of 16