Includes One Straight Lake Header Kit for the AMC 304, 360-401 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. 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)
2 – 1-3/4″ OD, 0.065″ wall plain steel (not aluminized!) 70 degree mandrel bend
6 – 1-3/4″ OD, 0.065, 10″ long plain steel tubing
1 pair – 3/8″ thick exhaust flanges – specific motor application listed above
(photo is shown just for reference, contents listed above is actually what you will receive)
304 cu. in (1970-79)
360 cu. in (1970-78)
390 cu in (1970)
401 cu in (1971-76)
Ports designed to be used with 1 3/4” OD tubing.
These flanges are designed in CAD and are test fit to make sure proper fitment is achieved.