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Doug's Headers  |  SKU: D626-BKLK

Long Tube Headers for 67-70 Mustang/Cougar 390-428 FE Motor W/O EGR/A.I.R. D626

Regular price $974.50 USD
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Fitment

Warranty Information

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Description

Overview:

66-69 Ford 390-428 Long Tube Silver Ctd

Long tube headers provide the greatest increases in horsepower and torque across the entire RPM spectrum. The choice of racers worldwide, Doug's long tube headers are designed for the car owner who wants maximum power and the highest quality header on the market.

Features:

  • 3/8" Thick machined flanges to prevent warping
  • Precision formed long transition collectors and long tube design reduces backpressure and increases higher RPM horsepower
  • Heavy duty 16-gauge tubing for long life
  • Tubes are pre-polished to removed scratches before applying metallic ceramic or hi-temp black coating

Specs:

  • Brand: Doug's Headers
  • Collector Attachment: 3-Bolt Flange
  • Collector Diameter: 3.0 IN
  • Collector Port Diameter: 3.0 IN
  • Color: Silver
  • Cylinder Head Port Shape: Rectangular
  • Design: Full-length
  • EGT Port: No
  • Finish: Metallic Ceramic Coated
  • Flange Thickness: 0.375 IN
  • Gasket Or Seal Included: Yes
  • Gaskets Included: Yes
  • Grade Type: Performance
  • Header Material: Steel
  • Header Style: Full-length
  • Material: Steel
  • Mounting Hardware Included: Yes
  • Oxygen Sensor Port: No
  • Port Shape: Rectangular
  • Primary Tube Outside Diameter: 1.75 IN
  • Primary Tubing Diameter: 1.75 IN
  • Prop 65 (C, R or CR): CR
  • Prop 65 Yes/No: Yes
  • Sheen Level: Semi-Gloss
  • Title: Doug's Long Tube Header 67-70 Mustang/Cougar 390-428 FE Motor W/O EGR/A.I.R. 1 3/4" Primary 3" Collector Silver Ceramic Coated D626
  • Tube Wall Thickness: 16 GU
  • Part Number: D626

Applications:

  • 1967-1970 Ford Mustang 428 CID
  • 1967-1969 Ford Mustang 390 CID
  • 1968-1968 Ford Mustang 427 CID
  • 1967-1970 Mercury Cougar 390 CID
  • 1968-1970 Mercury Cougar 428 CID
  • 1968-1968 Mercury Cougar 427 CID

Emissions:

  • This Product is considered а Replacement Part per CARB and EPA regulations for emissions compliance and is legal for sale and use on specified vehicles in all 50 states as stated in Manufacturer's Application Guide and lnstallation Instructions.

Instructions:

Fitment Notes:

  • On Power Steering Cars, Installation requires power steering bracket PN H7609.
  • Without factory oil cooler.
  • with Floor Shifter

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