Includes One Straight Lake Header Kit for the Chevrolet V6 4.3L 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)
1 – 1-5/8″ OD, 0.065″ wall plain steel (not aluminized!) 180 degree mandrel bend
4 – 1-5/8″ 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)
4.3L, 262 cu. in (1985-95)
*more applications/years may work, verify before purchasing.
Ports designed to be used with 1 5/8” exhaust tubing.
These flanges are designed in CAD and are test fit on an actual head to make sure proper fitment is achieved.