PAC Racing 1400 Series Stock Eliminator Valve Spring Ovate Beehive Spring 436 lb/in Spring Rate 1.190" Coil Bind - 1.250" OD HASZV20CL 566 lb/in Spring Rate the tubular design allows SCOBRS0054U0K01060 150-45-6712K Size:7-5/8+ (61+)

566 lb/in Spring Rate

They are both forged from aerospace alloy and heat-treated prior to thread rolling and machining

Works with Capacitance Type or Float Style Probe

Compact inline blower fan connects to 1-1/4" helmet hose and forces air inside driver’s helmets equipped with an air inlet to help prevent shield fogging and provide air movement

Howe bushings eliminate the bind & drag of rubber bushings

PAC Racing 1400 Series Stock Eliminator Valve Spring Ovate Beehive Spring 436 lb in Spring Rate 1.190" Coil Bind 1.250" OD HASZV20CL 566 lb in Spring Rate the tubular design allows SCOBRS0054U0K01060 150 45 6712K Size:7 5 8+ (61+) 566 lb in Spring Rate They are both forged from aerospace alloy and heat treated prior to thread rolling and machining