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Manley Extreme Duty Race Master exhaust valves, set of eight, for Ford 4.6L with 37.5 mm diameter and 117.35 mm length. Built for top fuel, funny car, marine and other extreme applications, these valves use XH‑432 XtremeAlloy, chrome stems and hard tips for high heat and wear resistance. Swirl‑polished under‑head areas and fully machined faces improve airflow and combustion efficiency in demanding race environments.
Manley Ford 4.6L 37.5mm Diameter 117.35mm Length Race Master Exhaust Valves (Set of 8)
