Pontiac 326-455 Swept Lake Header Kit

Includes One Swept Lake Header Kit of exhaust flanges for the Pontiac V8 326, 350, 455 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.

Kit includes: 

1 pair – 30″ long steel megaphones (1-5/8″ inlet with 3-1/2″ outlet)

4 – 1-5/8″ OD, 0.065″ wall plain steel (not aluminized!) 180 degree mandrel bends (customer to cut at angle needed to match megaphone angle as needed)

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)

Motor Application:

Pontiac V8

            326 cu. in (1953-54)

            350 cu in (1955-56)

            455 cu in (1957-59)

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

Ports designed to be used with 1-5/8” exhaust tubing.

These flanges are designed in CAD and are test fit to make sure proper fitment is achieved.