Includes one of exhaust/intake flange for the Chevrolet 6 cylinder 216, 235, 261 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:
Chevrolet (General Motors)
216 cu. in (1937-53)
235 cu in (1950-62)
261 cu in (1955-62)
*more applications/years may work, verify before purchasing.
Ports designed to be used with 1 5/8” and 1 3/4″ tubing for exhaust ports and 1 1/2″ tubing for intake ports.
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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