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GSC Power Division manganese bronze exhaust valve guide for Toyota 1JZ engines, supplied as a single unit with +.003in oversize OD. The oversize specification provides a larger outer diameter for correcting valve-to-guide clearance during reconditioning. Use this guide when a +.003in oversize is required to restore proper valve alignment and consistent exhaust valve operation in serviced heads.
GSC P-D Toyota 1JZ Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
