Manley 1.610 Spring Cups - .570 Id 42318-16

Manley 1.535 Spring Cups - .570 Id 42347-16Valve Spring Locator - Inside - 0.062 in Thick - 1.535 in OD - 0.570 in ID - 0.720 in Spring ID - Steel - Black Oxide - Set of 16

Manley 1.610 Nextek Dual Valve Springs 221444-16Valve Spring - NexTek - Dual Spring - 546 lb/in Spring Rate - 1.220 in Coil Bind - 1.610 in OD - Set of 16

Manley 1.660 Spring Cups 42371-16Valve Spring Locator - Outside - 0.062 in Thick - 1.740 in OD - 0.635 in ID - 1.677 in Spring OD - Steel - Black Oxide - Set of 16

Manley 1.311 Spring Cups 42324-16Valve Spring Locator - Inside - 0.205 in Thick - 1.300 in OD - 0.812 in ID - 0.650 Spring ID - Steel - Black Oxide - Set of 16