Spring Locator 1.540 O.D .640 I.D. .060 Thickness

The COMP Cams Spring Locator 1.540 O.D .640 I.D. .060 Thickness (part number 4783-16) is a precision valve spring locator engineered for internal engine assembly applications. This steel locator set of 16 pieces is designed to position valve springs with exact concentricity during camshaft and valvetrain installation, a critical requirement for proper spring preload and valve seating geometry. Available at TacticalSurplusUSA, this component serves engine builders, performance shops, and serious enthusiasts who demand OEM-quality specifications for high-reliability engine builds.

The 1.540-inch outer diameter and 0.640-inch inner diameter dimensions are engineered to locate springs on valve guides with minimal radial play. The 0.060-inch thickness provides a locating seat that maintains spring concentricity without interference, protecting against binding or misalignment during engine assembly. Steel construction ensures dimensional stability and longevity across repeated assembly cycles. This locator is compatible with the 0.690-inch spring inner diameter specification common in many small-block and mid-range engine applications, making it suitable for both stock rebuilds and performance modifications.

Engine builders and machine shops rely on precision locators to prevent costly assembly errors that lead to valve spring failure, loss of preload, or catastrophic valvetrain damage. The set of 16 pieces provides sufficient quantity for complete cylinder head assembly, multiple rebuilds, or shop inventory rotation. COMP Cams is recognized for manufacturing camshaft and valvetrain components to tight tolerances, and this locator reflects that standard. Whether rebuilding a street engine, race platform, or marine application, accurate spring location is foundational to engine longevity and performance.