The Supertech black-nitrided intake valve for Nissan RB20DET engines with solid lifters is a +1mm oversize single intended for rebuilds and maintenance. The nitrided finish boosts surface hardness for reliable operation under high loads. Sold individually to support selective cylinder repairs or valve jobs that need an oversize intake component.
Supertech Nissan RB20DET (w/Solid Lifters) Blk Nitrided Int Valve +1mm Oversize - Single (D/S Only)