Includes One Straight Lake Header Kit for the Chrysler Poly 301, 331, 354 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 a light coated lightly with oil to prevent rusting. The end result is less work to clean off the mill scale as needed with hot rolled mild steel.
1 pair – 30″ long steel megaphones (1-5/8″ inlet & 3-1/2″ outlet) – 4″ outlet available upon request
2 – 2″ OD, 0.065″ wall plain steel (not aluminized!) 70 degree mandrel bends
6 – 2″ OD, 0.065, 10″ long plain steel tubing
1 pair – 3/8″ thick exhaust flanges – specific motor application listed below
(photo is shown just for reference, contents listed above is actually what you will receive)
301 cu. in (1955)
331 cu in (1951-56)
354 cu in (1956-58)
*more applications/years may work, please verify before purchasing.
Ports designed to be used with 2” exhaust tubing.
These flanges are designed in CAD and are test fit to make sure proper fitment is achieved.