GSC P-D Toyota G16E +.003in Oversize OD Manganese Bronze Exhaust Valve Guide Stopper Style- Single

GSC Power Division is known for making performance engine components, and this exhaust valve guide stopper is a good example of their focus on detail. This specific part is designed for Toyota G16E engines and is an oversize OD version, measuring +.003 inches larger than stock. It's made from manganese bronze, a material chosen for its good wear resistance and self-lubricating properties, which helps ensure smooth operation of your valve train.

This stopper is the 'single' piece in the 'stopper style' design, meaning it's intended to prevent the valve guide from moving. The manganese bronze construction is beneficial because it can handle the heat and friction found in the exhaust port area. Using an oversize part like this is often necessary when the original valve guide bore has been reconditioned or slightly enlarged, ensuring a snug and correct fit for the valve guide.