Valve Spring Shims 1.625in x .030in

Manley Valve Spring Shims 1.625in x .030in (part number 03273-50) are precision-engineered steel components designed for high-performance engine valve train assembly and adjustment. These shims are critical components used to set proper valve clearance and control valve spring pressure in racing engines, performance builds, and engine rebuilds where exact specifications directly impact combustion efficiency and reliability.

The set contains 50 individual shims, each measuring 1.625 inches in outer diameter with a 0.645-inch inner diameter and 0.030-inch thickness. Manufactured from hardened steel, these shims deliver the dimensional consistency required for precision valve clearance setup. Proper shim selection ensures optimal valve timing, reduces risk of valve float under high RPM conditions, and maintains consistent spring pressure across the valve train. The 0.030-inch thickness specification allows builders to fine-tune clearance adjustments in small, controlled increments when combined with other shim sizes.

Manley is recognized in motorsports and performance engine building for manufacturing components to OEM and racing standards. These shims are intended for experienced engine builders, race teams, and performance shops performing valve train work. Having a complete set of assorted shim sizes on hand eliminates guesswork during valve clearance measurement and adjustment. Whether rebuilding a street performance engine or preparing race equipment, precision shims directly contribute to engine reliability and longevity by maintaining factory-specified or custom valve clearances.