Oldsmobile 324-371 Exhaust Flange

Includes one pair exhaust flanges for the Oldsmobile 324, 371 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:

Oldsmobile

            324 cu. in (1954-56)

            371 cu. in (1957-60)

            *more applications/years may work, verify before purchasing.

Ports designed to be used with 1 3/4” tubing for the end ports and 2 1/4″ tubing for the center port..

These flanges are designed in CAD and are test fit on an actual head to achieve proper fitment.