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The Supertech black nitrided intake valve for Toyota 1GR‑FE engines is a single replacement offered at +1.5mm oversize to support more extensive valve seat machining during rebuilds. Sold individually, the larger oversize provides an increased margin for reconditioning. The product description lists the nitrided finish as the specified surface treatment for this valve.
Supertech Toyota 1GRFE Black Nitrided Intake Valve - +1.5mm Oversize - Single
