THESE .015", .030", .060" THICK VALVE SPRING SHIMS WITH 1.437" OUTSIDE DIAMETER AND .645" INSIDE DIAMETER ARE USED TO EQUALIZE THE INSTALLED HEIGHT OF VALVE SPRINGS. MADE FROM THE HIGHEST QUALITY SHIM STOCK, THEY ARE HEAT TREATED TO STAND UP TO RADICAL CAM LOBES. 3 SETS OF 16 SHIMS.
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