Manley 1.610 Spring Cups - .570 Id 42318-16

Manley Valve Spring Cup - 0.570 Id 42337-16Valve Spring Locator - Inside - 0.062 in Thick - 1.570 in OD - 0.570 in ID - 0.850 in ID Spring - Steel - Set of 16

Manley 1.560 Spring Cups 42373-16Valve Spring Locator - Inside - 0.062 in Thick - 1.570 in OD - 0.570 in ID - 0.835 in Spring ID - Steel - Black Oxide - Set of 16

Manley 1.550 Spring Cups 42377-16Valve Spring Locator - Outside - 0.062 in Thick - 1.680 in OD - 0.577 in ID - 1.550 in Spring OD - Steel - Black Oxide - Set of 16