Price: $380

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You are offerding on a Pair of Brand New Southwest Speed Triple Process Chrome Plated Long Tube Headers that fits 1966-1973 Ford & Mercury Passenger Cars with Small Block Ford 289-351 Cu. In. Engines (SWS Part #440-2620).

This pair of Southwest Speed long tube headers are a direct fit for 1966-1973 Ford passenger cars with Small Block Ford 289-351Cu. In. V-8 engines. The unique full-length & down swept design of this header makes it a great choice for the Ford & Mercury passenger cars with Small Block Ford Engines listed in the chart below. Ground parallel with .380" flanges on the cylinder head surface with 1 1/2" primary tubes, & feature 3" collectors and are supplied with 2-1/2" reducers that bolt to the collectors, to connect the rest of the exhaust system to the vehicle. Sold complete with header bolts and gaskets, and reducer bolts and gaskets. These Headers will fit angle plug or straight plug heads with no spark plug or spark plug wire restrictions.


  • Long Tube & Down Swept Design Header
  • 1 1/2" primaries to the 3" Collectors
  • Includes a pair of 2-1/2" reducers to connect exhaust under the vehicle
  • Great for some Hot Rods, Rat Rods & Street Rods
  • More Performance
  • Better Fuel Mileage
  • Great Choice to replace cast iron exhaust manifolds
  • Enhances the looks of any rod
  • Includes gaskets and mounting hardware
  • Triple Process Chrome Plated to resist early rust & corrosion

Factory Applications:

    Ford & Mercury Passenger Cars with Small Block Ford 289-351Cu. In. Engines:

    • Ford:
      • 1966-1970 Fairlane
      • 1966-1967 Falcon
      • 1969-1973 Mustang (Except with 302/351W Engine, C4 Transmission, & Column Shift)
      • 1966-1973 Ranchero
      • 1968-1973 Torino
    • Mercury:
      • 1966-1973 Comet (Except with 302/351W Engine, C4 Transmission, & Column Shift)
      • 1969-1973 Cougar
      • 1968-1971 Cyclone (Except with 302/351W Engine, C4 Transmission, & Column Shift)
      • 1968-1973 Montego

Header Specs:

  • Material Type: Steel
  • Header Tube Type: Long Tube
  • Flange Style: Round Port
  • Flange Thickness: .380"
  • Finish: Triple Process Chrome Plated
  • Hardware Included: Yes
  • Gaskets Included: Yes
  • Tube Outside Diameter: 1 1/2"
  • Collector Diameter: 3"
  • Reducer: 2 1/2"
  • Reducer Length: 4 7/8"


  • 1. Fits 289, 302, 351Cu. In. Small Block Ford Engines with standard exhaust pattern
  • 2. Must modify stock exhaust to retain catalytic converter(s).
  • 3. Will not fit with A.I.R. (SMOG) Pump.
  • 4. Power steering equipped vehicles will require purchase of SWS # 150-1218 slave cylinder lowering bracket.
  • 4. Will not fit with Powerglide transmission equipped with a factory floor shifter.
  • 5. Works with Air Conditioning.
  • 5. C4 with column except:
  • 6. Does Not Fit 1966-1973 Mustang/Comet/Cougar with 302/351W Engine, C4 Transmission, & Column Shift.

You can view and download the complete assembly instruction booklet for the slave cylinder lowering bracket here.

Chrome Warning:

Due to a revised chroming process brought on by recent EPA regulations and high labor costs, today's chrome is not the quality of days gone by. Be Aware: Exhaust components which are chrome plated are now much more susceptible to blueing, blistering, peeling & corrosion. We see very few headers that do not change color once exhaust temperatures are achieved. No warranty or returns on chrome 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
  • Polished Stainless Steel
  • 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 $9.99within 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.

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