Includes one pair of exhaust flanges for the Big Block Mopar 350, 361, 383, 400, 413, 426, 440 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 and a surface ready to weld to.
Motor Application:
Chrysler
350 cu. in (1958)
361 cu. in (1958-66)
383 cu. in (1959-71)
400 cu. in (1972-78)
413 cu. in (1959-65)
426 cu. in (1963-71)
440 cu. in (1966-78)
*more applications/years may work, verify before purchasing.
Ports designed to be used with 1 3/4” exhaust tubing.
These flanges are designed in CAD and are test fit on an actual head to make sure proper fitment is achieved.
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