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These COMP Cams hardened steel inboard locator spring seats use an internal locating shoulder to center the seat and hold the spring reliably. The set features a 1.340" outer diameter and a .570" inner diameter, providing a thin, durable seat that protects the head and shim while locating the spring for high-pressure, high-RPM race engine applications.
COMP Cams ID Spring Seats .570X.650X1.3
