GSC Power Division Exhaust Valve Guide for Mitsubishi 4G63T Manganese Bronze ...

GSC Power Division Exhaust Valve Guide for Mitsubishi 4G63T Precision-fit manganese bronze exhaust valve guide engineered for the Mitsubishi 4G63T. The GSC Power Division Shorty Stopper design delivers improved thermal stability, reduced oil retention and consistent valve seating for turbocharged performance engines. Material: Manganese bronze for superior wear resistance and thermal conductivity Application: Direct-fit for Mitsubishi 4G63T cylinder head Design: Shorty Stopper profile with +0.001in OD for a snug, reliable fit Benefit: Reduces oil carryover, improves valve guide life and enhances sealing for tighter valve tolerances Quantity: Sold as a single guide — ideal for targeted repairs or custom engine builds Built to exacting tolerances by GSC Power Division, this exhaust valve guide is a high-performance upgrade for street, track and competition engines. Replace worn guides to restore valve control, reduce smoking and maintain consistent compression under boost. Keywords: GSC Power Division, 4G63T valve guide, manganese bronze exhaust guide, Shorty Stopper, Mitsubishi performance parts