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Manley Extreme Duty exhaust valves for Big Block Chevrolet are engineered for the most demanding applications including Top Fuel, Funny Car, marine, and restricted circle-track use. Constructed from XH-432 XtremeAlloy with chrome stems and hard tips, they feature swirl-polished underheads and machined combustion faces to optimize airflow and withstand extreme force and heat in specialty racing environments.
Manley Big Block Chevrolet 1.900 Diameter Stock Length Extreme Duty Exhaust Valves - Set of 8
