Supertech BMW S14/S38 Manganese Bronze Intake/Exhaust Valve Guide 7mm Stem

When you're rebuilding the top end of your BMW S14 or S38 engine, getting the valve guides right is crucial for performance and longevity. These Supertech valve guides are made from manganese bronze, a material known for its excellent wear resistance and ability to handle the heat and friction inside your cylinder head.

Manganese bronze is a solid choice for valve guides because it's self-lubricating to a degree and won't gall against the valve stem, which is important for maintaining a good seal and preventing excessive wear. This particular guide is designed for a 7mm valve stem, ensuring a precise fit that helps control oil consumption and keeps your valves moving smoothly through their full range of motion.

Properly installed valve guides are key to ensuring your engine runs efficiently and doesn't burn excess oil. If you're in the middle of a performance build or a restoration, these guides are a well-built component to help you achieve your goals.