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GSC Power Division manganese bronze exhaust valve guide for Nissan VK56 engines, supplied as a single unit with +.001in oversize OD. The oversize dimension corrects valve-to-guide clearance during head servicing. This replacement guide is intended to restore proper valve alignment and reliable exhaust valve movement where the original guide is worn or needs an oversize fit for correct seating.
GSC P-D Nissan VK56 Manganese Bronze Exhaust Valve Guide +.001in Oversize OD - Single
