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The GSC Power Division exhaust valve guide for Nissan VR38DETT engines is an oversize, stopper-style guide supplied as a single unit. It features a +0.001 in OD oversize specification to suit a 6.6mm valve stem, restoring proper clearance where wear has occurred. Use this direct replacement during valve service to correct stem fit and preserve reliable valve alignment without modifying valve geometry.
GSC P-D Nissan VR38DETT +.001in OD Oversize 6.6mm Stem Exhaust Valve Guide Stopper Style - Single
