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The Supertech black-nitrided intake valve for Mazda Miata 1.8L is a single +1mm oversize replacement provided for valve-seat machining situations. The oversize dimension supports corrective grinding and selective replacement, helping technicians reestablish proper valve-to-seat contact. Use this valve when servicing a 1.8L Miata head that requires an oversize intake valve to restore sealing and fitment.
Supertech Mazda Miata 1.8L Black Nitrided Intake Valve - +1mm Oversize - Single
