Pontiac 326-455 Straight Lake Header Kit

Includes One Straight Lake Header Kit 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 & 3-1/2″ outlet) – 4″ outlet available (Include in order notes)

1 – 1-5/8″ OD, 0.065″ wall plain steel (not aluminized!) 180 degree mandrel bend

6 – 1-5/8″, 0.065 wall, 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)

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.