Price: $440

This item has been shown 597 times.

You are offerding on a Pair of Brand New Southwest Speed Polished Stainless Steel 1964-1979Long TubeHeaders for Pontiac326-455ci Engines (SWS Part #440-2684).


  • 1-5/8" primaries to 3" Collectors
  • Includes a pair of 3" to 2-1/2" reducers.
  • More Performance
  • Better Fuel Mileage
  • Includes gaskets and mounting hardware
  • Polished Stainless Steel to resist early corrosion


  • Pontiac:
    • 1970-1979 Firebird/Trans Am
    • 1973-1975 Grand Am
    • 1964-1970 GTO
    • 1964-1975 LeMans

Header Specs:

  • Material Type: Steel
  • Header Tube Type: Long Tube
  • Flange Thickness: 3/8"
  • Finish: Polished
  • Hardware Included: Yes
  • Gaskets Included: Yes
  • Tube Outside Diameter: 1 5/8"
  • Collector Diameter: 3"
  • Reducers: 3" to 2 1/2"


  • Must modify stock exhaust to retain catalytic converter
  • Will not fit with A.I.R. pump.
  • Will not fit Ram Air cylinder heads.
  • End holes on head must be drilled and tapped to insure proper seal.
  • Works with A/C.

    Polished Stainless Steel Warning:

    Stainless header tubing when exposed to exhaust temperature will cause the finish to change color which will vary with the exhaust temperatures. Please note that the finish of the header when the engine is started will change to a light champagne color to a darker gold finish and in some instance may even turn dark blue or purple. This can be polished out when utilizing Blue-away or Simi-chrome polish, but please note that when the headers reach running temperature, they may change color again. No warranty or returns on polished stainless steel exhaust items once they have been installed.

    Header Return Policy:

    Please refer to the header measurement chart below to make sure the header will fit your vehicle and application before ordering. In the event you order a header that will not fit your vehicle and application, you may return them for a refund, providing you don't damage the header. When you receive the header the finish will be protected and must remain unscratched for a refund. If you bend or dimple any of the tubes or scratch the finish, we will not be able to sell the header and will not be able to process a refund. Use care when trial fitting headers. Repack them well to prevent damage returning them to us. We won't process refunds for scratched, dimpled, dented, or bent headers.

    We also have these same headers available in:

    • Painted Flat Black
    • Chrome-Plated
    • Ceramic Hot Coated

    We also have thousands of other High Performance Partsin ourstore.


    There is no faster shipping on . If you pay for the item by 5:00 Eastern, Monday-Friday, we will ship it the same day. If it's after 5:00 EST, we will ship it the next business day. If you pay for the item on the weekend, we will ship it out Monday.

    now requires that sellers put a "handling time" on each item and "1 Business Day" is the shortest listed option. WE DON'T HAVE AHANDLING TIME. We ship same day in accordance with the paragraph above. No delays here. We want you to have theparts as bad as you do.

    Shippingcost will be $19.99within the continental United States. If you buy 2 or more ofour sales,shipping will certainly be combined to save you money. We will be glad to ship internationally. Just send me a message for an international shipping quote.

    Accepted payment methods:

    We accept Paypal. If buyer doesn’t have a Paypal account, he or she can pay with Visa, Mastercard, or Discover through seller’s merchant account.

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