Valve Spring - RAD-9000 - Dual Spring / Damper - 510 lb/in Spring Rate - 1.200 in Coil Bind - 1.570 in OD - Set of 16

Valve Spring - 1300 Series Circle Track - Dual Spring / Damper - 550 lb/in Spring Rate - 1.150 in Coil Bind - 1.574 in OD - Set of 16

Elevate your engine performance with the top-notch 1.574 Dual Valve Springs by PAC Racing Springs. Designed for the demanding needs of circle track racing, these dual springs deliver a stout 538 lb/in spring rate for optimal valve control. Upgrade to PAC...

Valve Spring - 1300 Series Circle Track - Dual Spring - 538 lb/in Spring Rate - 1.150 in Coil Bind - 1.574 in OD - Set of 16

Valve Spring - 1300 Series Circle Track - Dual Spring / Damper - 550 lb/in Spring Rate - 1.150 in Coil Bind - 1.574 in OD - Set of 16

Elevate your engine performance with the top-notch 1.580 Dual Valve Springs - Polished by MANLEY. Upgrade to these high-quality dual valve springs for optimal valve control and enhanced efficiency. Constructed with NexTek technology and a polished...