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The Supertech black nitride exhaust valve for Honda B18A and B20 engines is a single direct-fit valve sized 28 x 6.55 x 105.80 mm and finished with black nitride as specified in the source. Intended for exhaust-side replacement on B18A/B20 cylinder heads, this valve is supplied individually to allow precise matching during repairs or partial head rebuilds.
Supertech Honda B18A/B20 28x6.55x105.80mm Blk Nitride Exhaust Valve - Single (Drop Ship Only)
