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GSC Power Division intake valve guide for Nissan SR20DET/RB26 is available in a +0.003-inch oversize outside diameter with a stopper to suit heads needing larger guide bores. The oversize guide helps restore valve alignment and fit where service or machining has increased the head's guide diameter beyond STD, supporting proper valvetrain geometry without changing valve stem specifications.
GSC P-D Nissan SR20DET/RB26 Intake Valve Guide w/Stopper +.003in Oversize OD - Single
