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This set of eight Manley Extreme Duty exhaust valves for Big Block Chevy engines supplies components built for high‑heat, high‑force applications such as drag and marine use. Made from XH‑432 XtremeAlloy with chrome stems and hard tips, the valves have swirl‑polished under‑head areas and machined combustion faces to support improved airflow and durability under extreme operating conditions.
Manley Big Block Chevrolet Extreme Duty Exhaust Valve - 5.522in Overall L 1.900in Diameter Set of 8
