Manley 1.550 Pro Dual Valve Springs 22431-16

Manley 1.550 Pro Valve Springs Dual W/Damper 22429-16Valve Spring - Professional Series - Standard - 458 lb/in Spring Rate - 1.180 in Coil Bind - 1.550 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

Manley 1.550 H-11 Dual Valve Springs 22440-16Valve Spring - Professional Series - Dual Spring / Damper - 614 lb/in Spring Rate - 1.090 in Coil Bind - 1.550 in OD - 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

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 1.540 Dual Valve Springs 221461-16Valve Spring - NexTek - Dual Spring - 964 lb/in Spring Rate - 1.215 in Coil Bind - 1.540 in OD - Set of 16