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Hells Gate Hot Rods is proud to announce: Up for purchase is one pair of exhaust flanges for the Buick Nailhead hot rod motor (see motor applications below). These flanges are cut with a CNC HD (High Definition) Plasma cutter out of 3/8” Pickled and Oiled (P&O) steel. P&O material is hot rolled steel that has been dipped in acid to remove the mill scale and then lightly coated with oil. The end result is less work to clean off the mill scale as needed with hot rolled mild steel. Motor Application: Buick Nailhead 364 cu. in (1957-61) 401 cu in (1959-66) 425 cu in (1963-66) Ports designed to be used with 1 5/8” exhaust tubing. These flanges are designed in CAD and are test fit on an actual head to make sure proper fitment is achieved. Please let me know if you have any questions or need flanges (exhaust, intake, etc) for any other hot rod motor. We are developing new brackets, flanges, and hot rod parts everyday so if you don’t see what you are looking for, let me know. Also check out our other products.
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