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 |
| D669Y.pdf | 311.33KB |
| D669Y-1.pdf | 311.33KB |
| D669Y-1B.pdf | 311.33KB |
| D669Y-B.pdf | 311.33KB |
| Make | Model | Years | Engine | Fitment Notes |
| Ford | Fairlane | 1969 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Ford | Mustang | 1967 | 7.0L / 428 / V8 4.7L / 289 / V8 6.4L / 390 / V8 |
For use with 351W Engine Tri-Y |
| Ford | Mustang | 1968 | 7.0L / 428 / V8 7.0L / 427 / V8 5.0L / 302 / V8 4.7L / 289 / V8 6.4L / 390 / V8 |
For use with 351W Engine Tri-Y |
| Ford | Mustang | 1969 | 7.0L / 429 / V8 7.0L / 428 / V8 6.4L / 390 / V8 5.0L / 302 / V8 5.8L / 351 / V8 |
For use with 351W Engine Tri-Y On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. |
| Ford | Mustang | 1970 | 7.0L / 429 / V8 7.0L / 428 / V8 5.8L / 351 / V8 5.0L / 302 / V8 |
For use with 351W Engine Tri-Y On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. |
| Ford | Ranchero | 1969 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Ford | Ranchero | 1970 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Ford | Torino | 1969 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Ford | Torino | 1970 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Mercury | Comet | 1969 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Mercury | Cougar | 1969 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Mercury | Cougar | 1970 | 5.8L / 351 / V8 | On Power Steering Cars, Installation requires power steering bracket PN H7609. Tri Y design. Will fit with AOD Transmissions. Will not fit GT40 "P" heads. Will Fit with C6 transmission. Tri-Y |
| Collector Attachment | 3-Bolt Flange |
| Collector Diameter | 3.0 IN |
| Collector Port Diameter | 3.0 IN |
| Cylinder Head Port Shape | SAP |
| Design | Tri-Y |
| Flange Thickness | 0.375 IN |
| Gasket Or Seal Included | Yes |
| Gaskets Included | Yes |
| Grade Type | Performance |
| Header Style | Tri-Y |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | No |
| Part Type | Exhaust Header |
| Port Shape | SAP |
| Primary Tube Outside Diameter | 1.75 IN |
| Proposition 65 | www.P65Warnings.ca.gov |
| Tube Wall Thickness | 16 GU |
| Warranty Time | 24 Months |
