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A matched set of eight Supertech black-nitrided intake valves for Honda B16A and B18C engines, listed at +1mm oversize. These valves are specified for those engine types and sized to the +1mm dimension commonly needed for valve seat rework or replacement during head servicing. The catalog description notes both the nitrided finish and the oversize specification.
Supertech Honda B16A/B18C Black Nitrided Intake Valve - +1mm Oversize - Set of 8
