Manley 1.677 Triple Valve Springs 221448-16

Manley 1.677 Triple Valve Springs 221447-16Valve Spring - NexTek - Triple Spring - 746 lb/in Spring Rate - 1.160 in Coil Bind - 1.677 in OD - Set of 16

Manley 1.677 Triple Valve Springs 221449-16Valve Spring - NexTek - Triple Spring - 720 lb/in Spring Rate - 1.142 in Coil Bind - 1.677 in OD - Set of 16

Manley 1.570 Dual Valve Springs 221441P-16Valve Spring - NexTek - Dual Spring / Damper - 575 lb/in Spring Rate - 1.215 in Coil Bind - 1.570 in OD - Polished - Set of 16

Manley 1.580 Dual Valve Springs 221443-16Valve Spring - NexTek - Dual Spring - 535 lb/in Spring Rate - 1.170 in Coil Bind - 1.580 in OD - Set of 16