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COMP Cams ID spring locator is a hardened steel inboard-shoulder seat that centers and secures valve springs while protecting the cylinder head and shim under extreme spring pressures and high RPM. The 4783-style locator measures 1.540" OD and .640" ID, making it compatible with COMP dual springs and providing a compact seat that avoids heavy head machining required by older external cups.
COMP Cams ID Spring Seats 1.50 X 570 X
