Isky 1.560in Valve Springs 9385PLUS

Valve spring performance directly impacts your engine's ability to maintain precise valve timing under high RPM loads—critical for both naturally aspirated and forced induction builds. The Isky 1.560in Plus-Series springs deliver consistent load rates and reliable damping to prevent valve float while supporting aggressive cam profiles. Whether you're building a street performer or a dedicated race engine, these dual-spring assemblies provide the stability needed for repeatable, controlled power delivery.

• Dual spring design
• 500 lb/in rate
• 1.560 inch OD
• 1.180 inch coil bind
• Damper equipped
• Set of 16
• Plus-Series construction
• Isky manufacturing