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Manley Extreme Duty exhaust valve for Big Block Chevy features a 1.880 in head, 5.522 in overall length and a 0.3415 in stem, engineered for extreme force and heat. The Extreme Duty Series suits Top Fuel, Funny Car, marine and restricted circle-track applications. Swirl-polished underheads and fully machined combustion faces improve airflow while chrome stems and hard tips deliver enhanced wear resistance for demanding environments.
Manley Chevrolet Big Block Exhaust Valve Kit - 1.880in Head Dia. 5.522in O/A Length, 0.3415in Stem
