"Upgrade your engine build with premium valve stem seals that deliver superior performance and reliability. These SSI Positive Valve Stem Seals are specifically engineered for 11/32"" valve stems and .500"" guide O.D., offering a precise fit with dimensions of .309"" stem, .480""-.520"" guide, and .544"" height. Whether you are replacing worn seals or assembling a fresh engine, these valve stem seals provide a leak-free, secure fit designed to last. Featuring a positive seal and postive seal design, these valve seals prevent oil from leaking into the combustion chamber, promoting cleaner combustion, reduced emissions, and enhanced engine efficiency. The rubber seal ring and band style ensures effective oil metering for both street and performance applications. Built from high-grade synthetic rubber material, these standard valve seals are resistant to oil, heat, and pressure, making them ideal for high-stress environments. Designed as a direct replacement, this valve stem seal kit is interchangeable with OEM# E3DZ6571A, Qualcast #38-810-45, Silver Seal #45704, and others. It fits a variety of V6 3.8L OHV 12-valve engines from 1989 to 1995, including Buick, Chevrolet, Pontiac, and Oldsmobile models, and is suitable for sbc, bbc, and sbf builds. Whether working on a restoration, a high-performance street car, or a racing engine, this valve stem seals replacement kit offers trusted compatibility and easy installation. Each set includes 16 valve stem seals, covering all valves in most V6 and V8 applications."