Spring Locators 1.270 x .520

The Spring Locators 1.270 x .520 by COMP CAMS are precision internal valve spring locators engineered for small-block engine builders and performance mechanics who demand repeatability and reliability in high-revving applications. These hardened steel components sit inside the valve spring assembly, centering and stabilizing the spring during compression cycles while preventing lateral drift that compromises valve timing and engine longevity. Built for engines pushing performance limits, this set of 16 locators delivers the dimensional consistency required in racing, military-spec engines, and professional rebuild shops where tolerances matter.

Each locator measures 1.270 inches in outer diameter with a 0.520-inch inner diameter and accommodates a 0.650-inch spring ID, providing a robust 0.120-inch thickness that resists deflection under valve spring loads. Manufactured from steel for superior hardness and fatigue resistance, these locators prevent coil bind, reduce spring surge, and maintain valve seat contact integrity across extended power cycles. The precision-machined design ensures proper spring seating on the valve stem and spring seat, critical for engines operating at elevated RPMs where spring harmonics and resonance can induce catastrophic failure if left unchecked.

Performance rebuilders, diesel technicians, and military engine specialists benefit most from this 16-piece set when assembling complete valve train systems on small-block platforms requiring precision spring control. Installation is straightforward—the locator slides onto the valve spring assembly before the retainer, ensuring proper positioning during cylinder head torque sequencing. Compatibility spans any small-block engine using 1.270 OD spring locators, making this set essential inventory for shops supporting tactical vehicles, high-performance platforms, and engines where valve reliability directly impacts mission readiness or competitive performance.