Doug's Headers are a fixture in the motorsports aftermarket, pioneering quality muscle car performance headers for decades. Unlike the competition, Doug's Headers prides ourselves on superior design detail resulting in a hassle-free installation for any application.
| Download Name | File Size |
| D627.pdf | 449.1KB |
| Make | Model | Years | Engine | Fitment Notes |
| Ford | Fairlane | 1966 | 7.0L / 427 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Air Conditioning with Floor Shifter without Power Steering without Air Conditioning |
| Ford | Fairlane | 1967 | 7.0L / 427 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Air Conditioning with Floor Shifter without Power Steering without Air Conditioning |
| Ford | Fairlane | 1968 | 7.0L / 428 / V8 7.0L / 427 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Full-length with Air Conditioning with Floor Shifter without Power Steering Clutch linkage may need to be modified. without Air Conditioning |
| Ford | Fairlane | 1969 | 7.0L / 428 / V8 7.0L / 427 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Full-length with Air Conditioning with Floor Shifter without Power Steering Clutch linkage may need to be modified. without Air Conditioning |
| Ford | Mustang | 1967 | 7.0L / 428 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Ford | Mustang | 1968 | 7.0L / 428 / V8 7.0L / 427 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Ford | Mustang | 1969 | 7.0L / 428 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Ford | Mustang | 1970 | 7.0L / 428 / V8 | Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Mercury | Cougar | 1967 | 6.4L / 390 / V8 | Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Mercury | Cougar | 1968 | 7.0L / 427 / V8 7.0L / 428 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Mercury | Cougar | 1969 | 7.0L / 428 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Mercury | Cougar | 1970 | 7.0L / 428 / V8 6.4L / 390 / V8 |
Header design features two primary pipes crossing behind oil pan for improved fit. Originally designed on factory Cobra Jet Super Stock Cars. Extremely tight fit between shock towers. Fits better when shock towers are boxed. Clutch linkage may need to be modified. Full-length with Floor Shifter without Air Conditioning without Power Steering |
| Collector Attachment | 3-Bolt Flange |
| Collector Diameter | 3.5 IN |
| Collector Port Diameter | 3.5 IN |
| Cylinder Head Port Shape | Rectangular |
| Design | Full-length |
| Flange Thickness | 0.375 IN |
| Gasket Or Seal Included | Yes |
| Gaskets Included | Yes |
| Grade Type | Performance |
| Header Style | Full-length |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | No |
| Part Type | Exhaust Header |
| Port Shape | Rectangular |
| Primary Tube Outside Diameter | 2.0 IN |
| Proposition 65 | www.P65Warnings.ca.gov |
| Tube Wall Thickness | 16 GU |
| Warranty Time | 24 Months |
