GSC Power Division manganese bronze intake/exhaust valve guide for Ford EcoBoost 3.5L V6, +0.003in OD, single. The guide is supplied oversize to match reamed head bores and restore correct valve stem clearance in the listed application. Specified as manganese bronze, it serves as a direct replacement guide to reestablish proper valve alignment and fitment according to the oversize dimension.
GSC P-D Ford EcoBoost 3.5L 6 Cyl Manganese Bronze Intake/Exhaust Valve Guide +.003in OD - Single