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GSC Power Division manganese bronze intake/exhaust valve guide for GM LS7 engines, sold as a single unit with +.001in oversize OD. The oversize specification addresses valve-to-guide clearance issues encountered during cylinder head service. This replacement guide is intended to restore correct valve alignment and consistent valve movement where the original guide is worn or requires an oversize fit.
GSC P-D GM LS7 Manganese Bronze Intake/Exhaust Valve Guide +.001in Oversize OD - Single
