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The Manley Extreme Duty exhaust valve for Chevrolet small block engines is built for the most demanding applications, including Top Fuel and Funny Car drag racing, marine big‑block use and restricted circle‑track small block work. Featuring XH-432 XtremeAlloy construction, chrome stems, hard tips and swirl‑polished underheads with machined combustion faces, it improves airflow and resists wear under extreme heat and loads.
Manley Chevrolet Small Block Exhaust Valve Kit - 1.600in Head Dia. 5.015in O/A Length, 0.3415in Stem
