SBI Valvetrain

S.B. International

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. 

S.B. International manufactures a wide range of cylinder head and valvetrain components, including valve seat inserts, engine valves, valve guides, valve stem seals, valve springs, retainers, keepers, lifters, rocker arm components, pushrods, injector tubes, head saver shims, heat tabs, and torque-to-yield head bolts. SBI also offers K-Line® bronze valve guide liners and installation tooling, along with an expanded lineup of precision and performance parts through its Precision Engine Parts (PEP) brand. 

Every SBI valvetrain and cylinder head component is produced using quality materials and precise manufacturing processes to ensure proper fit, durability, and long service life. From standard rebuilds to more demanding applications, these parts are engineered to deliver dependable results you can count on. 

With decades of aftermarket experience and a continually expanding product lineup, SBI Valvetrain remains a trusted solution for professional engine builders and enthusiasts alike.