GSC P-D 4G63 Manganese Bronze Exhaust Valve Guide Shorty Stopper .003in Oversize - SINGLE

When you're rebuilding the top end of your 4G63 engine, especially if you're aiming for improved performance or durability, the small details make a big difference. This manganese bronze exhaust valve guide stopper from GSC Power Division is one of those crucial pieces. It's designed to keep your valve guides properly seated, preventing them from moving around under the stress of engine operation, which is especially important in performance applications.

Made from manganese bronze, this material is known for its good wear resistance and ability to handle the heat found in the exhaust port area. This particular stopper is .003 inches oversize, meaning it's intended for guides that have been machined to accept this slightly larger size for a snugger fit. It's a single piece, so you'll need to order the correct quantity for your application, typically one per valve guide.