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COMP Cams ID spring locator is a hardened steel inboard-shoulder seat that centers and holds valve springs while shielding the cylinder head and shim from extreme spring pressures and high RPM. The 4785 features a 1.550" OD and .570" ID and pairs well with COMP spring families such as 917, 919 and 943, offering compact seating without heavy head machining.
COMP Cams ID Spring Seats 1.55 X 570 X
