1.260in Valve Springs

The 1.260in Valve Springs from ISKY CAMS are precision-engineered components designed for serious engine builders and performance mechanics who demand reliability in high-RPM applications. Whether you're building a street machine, weekend racer, or daily driver with aggressive cam profiles, these valve springs maintain consistent load across the valve lift cycle—critical for preventing valve float, coil bind, and catastrophic engine damage. Set of 16 springs ensures you have a complete replacement set for a full engine rebuild or performance upgrade.

These 1.260-inch outer diameter valve springs deliver a 360 lb/in spring rate with a 1.100-inch coil bind specification, providing the stiffness needed to control valve motion under aggressive lift and duration while preventing over-compression at maximum valve travel. ISKY's proven manufacturing process ensures consistent wire diameter and coil geometry, eliminating the premature fatigue and metallurgical failure common in inferior aftermarket springs. The damper-equipped design (single spring configuration) reduces harmonics and noise while extending component lifespan in high-lift cam applications.

These springs excel in small-block and mid-block engine platforms where 360 lb/in rate matches popular performance cam profiles from 0.500 to 0.650-inch lift ranges. Installation requires removing the valve cover, compressing springs with a spring compressor tool, and swapping old springs with new ones—a task well within reach of any home mechanic with basic engine knowledge. Verify your engine's original spring rate and valve lift specifications before ordering to ensure proper valve train geometry and avoid over-stressing pushrods or rocker arms.