The COMP Cams CNC spring seat locator is a hardened steel inboard seat that protects the head and shim while centering the valve spring under extreme pressures and high RPM. The 4713 candidate measures approximately 1.565" outer diameter with a .535" inner diameter, providing a CNC-machined locator option for applications requiring those specific dimensions and a durable seating surface.
COMP Cams Spring Seat Cnc 100X.535 X1.1