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GSC Power Division manganese bronze intake/exhaust valve guide for GM LS7 engines, supplied as a single unit with +.003in oversize OD. The +.003in oversize option corrects valve-to-guide clearance during head reconditioning. This replacement guide is meant to restore proper valve alignment and support consistent valve movement in LS7 cylinder heads that need an oversize fit.
GSC P-D GM LS7 Manganese Bronze Intake/Exhaust Valve Guide +.003in Oversize OD - Single
