Manley Valve Spring Shim, SHIMS-1.250 X .030

Manley Performance Valve Spring Shims are precision-machined to accurately set installed valve spring height and achieve proper spring pressure for maximum performance and reliability. Manufactured from high-quality hardened steel, they provide a durable, stable foundation that helps optimize valve train geometry, reduce wear, and ensure consistent engine performance.

• Available in .060”, .030” and .015” thickness
• Heat treated to resist wear