Manley 1.550 Spring Cups 42377-16

Manley 1.550 Spring Cups 42330-16Valve 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

Manley 1.550 Pro Dual Valve Springs 22431-16Valve Spring - Professional - Dual Spring / Damper - 507 lb/in Spring Rate - 1.190 in Coil Bind - 1.550 in OD - Set of 16

Manley 1.550 Nextek Dual Valve Springs 221452Sf-16Valve Spring - NexTek - Super Finish - Dual Spring - 618 lb/in Spring Rate - 1.150 in Coil Bind - 1.550 in OD - Set of 16