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This Manley Extreme Duty exhaust valve carries a 1.940 in head, 5.522 in overall length and a 0.3415 in stem, developed to withstand intense heat and load. Intended for Top Fuel, Funny Car, marine and restricted circle-track Big and Small Block Chevy use, the valve’s swirl-polished underheads, machined combustion faces, chrome stems and hard tips combine to optimize combustion efficiency and long-term durability.
Manley Chevrolet Big Block Exhaust Valve Kit - 1.940in Head Dia. 5.522in O/A Length, 0.3415in Stem
