Valve Spring - Single Spring / Damper - 370 lb/in Spring Rate - 1.100 in Coil Bind - 1.490 in OD - Set of 16

Rocker Arm - 3/8 in Stud Mount - 1.50 Ratio - OEM / Long Slot - Ball / Nut Included - Steel - Small Block Chevy - Each

Valve Spring - 1300 Series Drag Race - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Each

Upgrade your engine's performance with the PAC Racing Springs 1.500 Dual Valve Spring. Designed for drag racing, this dual spring boasts a formidable 780 lb/in spring rate to ensure optimal valve control and maximum power output. With a 1.130-inch coil...

Valve Spring - 1300 Series Drag Race - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Each

Valve Spring - 1300 Series Drag Race - Dual Spring - 780 lb/in Spring Rate - 1.130 in Coil Bind - 1.500 in OD - Each