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The GSC intake valve guide for Hyundai G4KF Theta engines is a manganese bronze replacement supplied individually with a +.001in oversize outer diameter. It functions as a direct-fit guide to maintain valve stem alignment and consistent operation in rebuilt or repaired heads. The small oversize supports accurate seating when the guide bore has been adjusted to accept a slightly larger guide.
GSC P-D Hyundai G4KF Theta Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
