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Manley Race Master and Extreme Duty exhaust valves set for Ford 4.6L includes eight 38.5mm valves built for high-heat, high-force applications such as drag and marine use. These valves feature chrome stems, hard tips, swirl-polished under-head areas and fully machined combustion faces for improved airflow and durability. XH-432 XtremeAlloy construction targets extreme-duty longevity and consistent performance.
Manley Ford 4.6L 38.5mm Race Master & Extreme Duty Exhaust Valves *Set of 8*
