1.290 Dual Valve Springs 16pk Valve Spring - Dual Spring - 355 lb/in Spring Rate - 1.200 in Coil Bind - 1.290 in OD - Set of 16

1.290 RPM Series Valve Springs Beehive 16Pk Valve Spring - RPM Series - Beehive Spring - 490 lb/in Spring Rate - 1.070 in Coil Bind - 1.290 in OD - Set of 16

Valve Spring Retainers 1.290 8mm 7-Deg 16pk Valve Spring Retainer - 7 Degree - 1.102 in OD Step - 1.290 in Spring - Chromoly - Black Oxide - Set of 16

1.200 Dual Valve Spring Retainers 16pk Valve Spring Retainer - 600 Series - 8 Degree - 0.775 in OD Step - 1.200 in OD Dual Spring - Steel - Set of 16

1.290 Dual Valve Springs - RPM Series (16) Valve Spring - RPM Series - Dual Spring - 369 lb/in Spring Rate - 1.000 in Coil Bind - 1.290 in OD - GM LS-Series - Set of 16