Premium Stainless Steel: The Performance Series valves are available as XH-422 for exhaust and NK-840 for intake, constructed from high-quality stainless steel for optimal performance.Chrome Stems and Hard Tips: These valves boast chrome stems and hard tips, ensuring exceptional durability, even under extreme conditions.Swirl Polished and Fully Machined: The under head areas are expertly swirl polished, and the combustion faces are fully machined, optimizing airflow and combustion efficiency for maximum power.Variety of Lengths: Tailor your valve selection to your engine's needs with options for stock length or .100? longer lengths.

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Manley

Manley Performance is a leading manufacturer of high-performance engine components, specializing in valve train parts, pistons, rods, and crankshafts. Known for their precision engineering and use of high-quality materials, Manley products are designed to handle extreme power and performance demands in racing and motorsport applications. Trusted by enthusiasts and professionals worldwide, Manley continues to provide innovative solutions for building high-revving, durable engines that push the limits of performance.

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