The Supertech Inconel intake valve for Mazda Miata 1.8L is a +1mm oversize replacement valve supplied as a single, special-order item. Offered for engines requiring an oversize intake valve, the part lists Inconel construction in the description, making it suitable where high-temperature resistant valve material is specified for engine rebuilding or performance-oriented cylinder head work.
Supertech Mazda Miata 1.8L Inconel Intake Valve - +1mm Oversize - Single (Special Order D/S Only)