Valve Spring - RPM Series - Beehive Spring - 313 lb/in Spring Rate - 1.170 in Coil Bind - 1.135 in / 1.589 in OD - Set of 16

Valve Spring - Beehive Spring - 300 lb/in Spring Rate - 1.130 in Coil Bind - 1.186 in / 1.590 in OD - Set of 16

Valve Spring - RAD-9000 - Dual Spring / Damper - 600 lb/in Spring Rate - 1.160 in Coil Bind - 1.600 in OD - Set of 16

Valve Spring - RAD-9000 - Dual Spring / Damper - 810 lb/in Spring Rate - 0.850 in Coil Bind - 1.600 in OD - Set of 16

Valve Spring - PSI Sportsman Drag Race - Triple Spring - 744 lb/in Spring Rate - 1.130 in Coil Bind - 1.600 in OD - Set of 16

Valve Spring - RAD-9000 - Dual Spring / Damper - 650 lb/in Spring Rate - 1.150 in Coil Bind - 1.600 in OD - Set of 16