Valve Spring - Beehive Spring - 191 lb/in Spring Rate - 1.010 in Coil Bind - 0.959 in / 1.061 in OD - Set of 24

Valve Spring - Boss 302R - Single Beehive Spring - 1.020 in OD - Ford Coyote - Set of 16

Valve Spring Kit - Dual Spring - 379 lb/in Spring Rate - 1.100 in Coil Bind - 1.295 in OD - Chromoly Retainer - GM LS-Series - Kit

Valve Spring Kit - Dual Spring - 379 lb/in Spring Rate - 1.100 in Coil Bind - 1.295 in OD - Titanium Retainer - GM LS-Series - Kit

Valve Spring - Conical - Single Spring - 440 lb/in Spring Rate - 1.125 in Coil Bind - 1.030 in / 1.286 in OD - Set of 16

Valve Spring - Conical - Single Spring - 519 lb/in Spring Rate - 1.175 in Coil Bind - 1.060 in / 1.332 in OD - Set of 16