COMP Cams ID Spring Locator Set of 100 - 1.625" OD, .570" ID, .060" Thick

The older style standard shims will not hold up to the extreme spring pressures and high RPM found in racing engines being built today. COMP Cams offers a simple but effective solution to this problem - a thin, hardened steel alloy seat which will not only protect the head and shim but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the part. This required that the head be machined a great deal to accept this cup so COMP now offers an I.D. locator with the locatin g shoulder on the inside, as well as the spring cup. Many sizes are available to locate from the inside or outside diameter.