Land Speed Record Holder and 3 Time America's Most Beautiful Roadster winner, Ermie Immerso, started in the exhaust business in the early 1960's and quickly became an industry leader in the header and exhaust business with the Thunderbird Brand and by building private label product for many iconic industry companies. In 2000, PerTronix entered the Exhaust business by acquiring the company when Ermie decided to retire. PerTronix knowledge of the Performance Industry, combined with Employees with extensive backgrounds in the exhaust business made this seemingly unlikely pairing a well-matched addition. Rebranded as Patriot Exhaust Products, we expanded the product line while strengthening the existing products including Headers, Side Pipes, Exhaust Tips, and the Smithy's Mufflers- the Original Hot Rod Muffler! Patriot continues to be a favorite for owners and top builders of Street Rods, Customs, Pick Up Trucks, and Muscle Cars.

| Download Name | File Size |
| H8405-1.pdf | 325.79KB |
| H8405-B.pdf | 325.79KB |
| Make | Model | Years | Engine | Fitment Notes |
| Ford | F-100 | 1965 | 4.7L / 289 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1966 | 4.7L / 289 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1967 | 4.7L / 289 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1968 | 4.7L / 289 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1969 | 4.7L / 289 / V8 5.0L / 302 / V8 |
Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States Legal for use on 69-74 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1970 | 4.7L / 289 / V8 5.0L / 302 / V8 |
Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States Legal for use on 69-74 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1971 | 4.7L / 289 / V8 5.0L / 302 / V8 |
Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States Legal for use on 69-74 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1972 | 4.7L / 289 / V8 5.0L / 302 / V8 |
Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-72 F-100 Emission Vehicles in 50 States Legal for use on 69-74 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1973 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1974 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1975 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1976 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1977 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1978 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-100 Emission Vehicles in 50 States |
| Ford | F-100 | 1979 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-100 Emission Vehicles in 50 States |
| Ford | F-150 | 1975 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-150 Emission Vehicles in 50 States |
| Ford | F-150 | 1976 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-150 Emission Vehicles in 50 States |
| Ford | F-150 | 1977 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-150 Emission Vehicles in 50 States |
| Ford | F-150 | 1978 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-150 Emission Vehicles in 50 States |
| Ford | F-150 | 1979 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-150 Emission Vehicles in 50 States |
| Ford | F-250 | 1969 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1970 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1971 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1972 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1973 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1974 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 69-74 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1977 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 77-78 F-250 Emission Vehicles in 50 States |
| Ford | F-250 | 1978 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 77-78 F-250 Emission Vehicles in 50 States |
| Ford | F-350 | 1965 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1966 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1967 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1968 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1969 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1970 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1971 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1972 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1973 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1974 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Legal for use on 65-74 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1975 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1976 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1977 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1978 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-350 Emission Vehicles in 50 States |
| Ford | F-350 | 1979 | 5.0L / 302 / V8 | Does not fit with C-6 transmission. Vehicles with Air Injection heads will require grinding of the header flange to fit. Will not fit GT40 "P" heads. Fits 2WD and 4WD trucks. Not Legal for use on 75-79 F-350 Emission Vehicles in 50 States |
| Collector Attachment | 3-Bolt Flange |
| Collector Port Diameter | 2.5 IN |
| Design | Long Tube |
| Gasket Or Seal Included | Yes |
| Grade Type | Performance |
| Mounting Hardware Included | Yes |
| Oxygen Sensor Port | No |
| Part Type | Exhaust Header |
| Port Shape | Rectangle |
| Proposition 65 | www.P65Warnings.ca.gov |
| Tube Wall Thickness | 18 GU |
| Warranty Time | 12 Months |