GSC Power Division manganese bronze exhaust valve guide for 4G63 engines, shorty stopper style with a .003 in oversize dimension, sold individually. The bronze construction provides robust wear resistance for exhaust valves and helps maintain valve-to-guide clearance. This guide is intended for valve train rebuilds where precise fit and long life are needed, supporting durable operation in high‑heat exhaust environments.
GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide Shorty Stopper .003in Oversize - SINGLE