COMP Cams Spring SeatsEb For Gm LS1 1.4 4712-100 Artec Industries 50 0" Guide COMP Cams

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COMP Cams Spring SeatsEb For Gm LS1 1.4 4712-100 Artec Industries 50 0" Guide COMP CamsCOMP Cams Valve Springs, Retainers 4712 100 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