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Founded in 1982, S.B. International, also known as SBI Valvetrain, is a trusted manufacturer of precision engine components with a strong focus on cylinder head and valvetrain parts. Based in Nashville, Tennessee, SBI supplies engine builders and machine shops around the world with dependable components for automotive, diesel, industrial, agricultural, marine, and performance engine applications.
SBI Valvetrain components are designed for reliable operation in both stock replacement and performance engines. The company focuses on consistent quality, proper fitment, and broad application coverage, making them a go-to choice for engine rebuilds where precision matters. Whether you’re refreshing a daily driver, rebuilding your diesel, or working on a performance engine, these parts are built to meet the demands of modern engines.
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