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The GSC intake valve guide for Nissan SR20 and RB26 engines is a manganese bronze replacement offered as a single unit with a +.003in oversize outer diameter. It provides direct-fit valve guidance to restore proper valve stem travel and alignment during head rebuilds. Sold individually, this oversize guide helps achieve correct clearance when the original bores require a larger guide.
GSC P-D Nissan SR20/RB26 Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
