As with all other parts in the Valve Train, the area where the Spring sits also takes a beating. The old standard Shims simply will not hold up to the extreme Spring pressures and high RPMs found in racing Engines being built today. COMP Cams® offers a simple but effective solution to this nasty 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. A new cup with the locating shoulder on the inside is now available.
A Thin, Hardened Steel Alloy Seat Which Will Not Only Protect The Head And Shim, But Also Locate And Hold The Spring In Place
Limited 1 Year Warranty