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The Manley Extreme Duty exhaust valve for Ford 4.6L Modular V8 applications offers a 38.50 mm head diameter and 4.585 in overall length, built for extreme-force, high‑heat environments like drag and marine racing. Featuring Manley’s XH‑432 alloy, swirl‑polished underheads, fully machined combustion faces, chrome stems and hard tips, these valves prioritize fatigue resistance, airflow efficiency and long-term durability under intense operating conditions.
Manley Ford 4.6L Modular V8 Exhaust Valve Kit - 38.50mm Head Dia. 4.585in O/A Length, 0.2345in Stem
