Comp Cams SPRING SEAT CUPS, FOR 1.500" SPRING Radiator Plates If you're serious about elevating

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Comp Cams SPRING SEAT CUPS, FOR 1.500" SPRING Radiator Plates If you're serious about elevatingSpring Seat Cup, For 1. 500" The old 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