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The GSC Power Division manganese-bronze intake valve guide for Mitsubishi 4B11T is a single oversize replacement with a +.003in outer diameter. Supplied individually for cylinder head reconditioning, it corrects worn guide bores to re-establish proper clearance and helps preserve valve alignment and intake sealing following a valve‑train service.
GSC P-D Mitsubishi 4B11T Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
