Mopar Big Block 350-440 Exhaust Flange

Includes one pair of exhaust flanges for the Big Block Mopar 350, 361, 383, 400, 413, 426, 440 hot rod engine (see engine applications below).  These flanges are cut with a CNC fiber laser 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 coated lightly with oil.  The end result is a surface ready to weld to without the extra prep time to remove mill scale. 

Engine 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 achieve proper fitment.