Ford 351C, 351M, 400 (4V) Swept Lake Header Kit

Includes One Swept Lake Header Kit for the  Small Block Ford 351C, 351M, 400 (4V heads) hot rod engine (see engine applications below).  These flanges are cut with a fiber laser 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 lightly coated with oil.  The end result is a surface ready to weld to.

Kit includes: 

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

8 – 2″ OD, 0.065″ wall plain steel (not aluminized!) 70 degree mandrel bends

1 pair – 3/8″ thick exhaust flanges – specific engine application listed below

(photo is shown just for reference, contents listed above is actually what you will receive)

Engine Application:

Small Block Ford (4V heads)

            351 cu in Cleveland (1970-74)

            351 cu in Modified (1975-82)

            400 cu in (1971-82)

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

Ports designed to be used with 2” exhaust tubing.

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