Valve Spring - Hot Rod Series - Dual Spring - 370 lb/in Spring Rate - 1.010 in Coil Bind - 1.290 in OD - Set of 16

Valve Spring - Hot Rod Series - Dual Spring - 392 lb/in Spring Rate - 1.020 in Coil Bind - 1.304 in OD - GM LS-Series - Set of 16

Valve Spring - Hot Rod Series - Dual Spring - 392 lb/in Spring Rate - 1.020 in Coil Bind - 1.304 in OD - Set of 16

Valve Spring - Hot Rod Series - Dual Spring - 417 lb/in Spring Rate - 0.910 in Coil Bind - 1.465 in OD - Set of 16

Valve Spring - Hot Rod Series - Dual Spring - 417 lb/in Spring Rate - 0.910 in Coil Bind - 1.465 in OD - Set of 16

Valve Spring - Hot Rod Series - Dual Spring / Damper - 431 lb/in Spring Rate - 1.125 in Coil Bind - 1.540 in OD - Set of 16