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Manley Extreme Duty exhaust valves for the Chevy L83 5.3L are sold as a set of eight and built for applications demanding extreme heat and force resistance. XH‑432 XtremeAlloy construction with chrome stems and hard tips combines with swirl‑polished under‑head areas and fully machined combustion faces to improve airflow, combustion efficiency and wear resistance in racing and marine competition.
Manley Chevy L83 5.3L 1.560in Head Diameter Pro Flo/Extreme Duty Exhaust Valves (Set of 8)
