351 Long Tube Stainless Steel Headers, Factory 5

  • 351 long tube 304 stainless steel headers for your Factory Five Mark I, II, II, IV. With race inspired technology you are looking at the very best GASN has to offer. Hand made in the USA using American made stainless steel they are built for easy installation and to maximize your horse power and torque.

    They come with a natural unpolished autumn stainless finish or you can ordered them with a mirror finished polished stainless steel They will not rust, rot, crack, pit or decay. These headers are built to last a life time.

  • Product features on this system includes:

    1. Primary sizes are available with 1-3/4", 1-7/8" or Step Header
    2. Mandrel bent one piece primaries
    3. Header flange available with either 2" or 3" bolt pattern
    4. Will fit AFR, Trick-flow, Roush and standard Ford Racing heads
    5. 3/8" thick laser-cut flanges for a warp-free seal (upgrade to CNC flanges available at extra cost)
    6. Double collector with 02 bung and scavenger spike are available
    7. Hand built and happily fabricated and designed in USA
    8. Hand ported & polished
    9. TIG & MIG welded