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Doug's Headers 1948-77 Ford/Mercury Small Block with Mustang II Suspension 1 3/4" Long Tube Header D623

Doug's Headers 1948-77 Ford/Mercury Small Block with Mustang II Suspension 1 3/4" Long Tube Header D623
Doug's Headers 1948-77 Ford/Mercury Small Block with Mustang II Suspension 1 3/4" Long Tube Header D623Doug's Headers 1948-77 Ford/Mercury Small Block with Mustang II Suspension 1 3/4" Long Tube Header D623
from $1,529.52 st

Available Options

*
Model: 5124695
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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[More Info]
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. This fitment is tailored for popular aftermarket engine swap kits. Doug's engine swap headers were developed to solve common fitment issues in tight spaces, making your swap process smoother. No more guesswork or modifications needed - just straightforward installations that save you time and frustration.
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
About Doug's Headers

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.

Downloads:

Download Name File Size
D623.pdf311.16KB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine Fitment Notes
Ford F-100 1953 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 53-56 F-100 Emission Vehicles in 50 States
Ford F-100 1954 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 53-56 F-100 Emission Vehicles in 50 States
Ford F-100 1955 4.2L / 256 / V8
4.4L / 272 / V8
3.9L / 239 / V8		 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 53-56 F-100 Emission Vehicles in 50 States
Ford F-100 1956 4.4L / 272 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 53-56 F-100 Emission Vehicles in 50 States
Ford F-1 1948 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 48-52 Ford F-1 Emission Vehicles in 50 States
Ford F-1 1949 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 48-52 Ford F-1 Emission Vehicles in 50 States
Ford F-1 1950 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 48-52 Ford F-1 Emission Vehicles in 50 States
Ford F-1 1951 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 48-52 Ford F-1 Emission Vehicles in 50 States
Ford F-1 1952 3.9L / 239 / V8 Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Fits 260-351W Ford Small Block Engines
Full-length
with Floor Shifter
Legal for use on 48-52 Ford F-1 Emission Vehicles in 50 States
Ford Fairlane 1966 4.7L / 289 / V8
7.0L / 427 / V8
6.4L / 390 / V8
5.8L / 352 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 66-67 Fairlane Emission Vehicles in 50 States
Ford Fairlane 1967 7.0L / 427 / V8
4.7L / 289 / V8
6.4L / 390 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 66-67 Fairlane Emission Vehicles in 50 States
Ford Falcon 1960 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1961 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1962 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1963 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1964 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1965 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1966 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1967 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1968 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1969 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Falcon 1970 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-70 Falcon Emission Vehicles in 50 States
Ford Maverick 1970 5.0L / 302 / V8 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1971 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1972 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1973 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1974 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1975 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1976 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Maverick 1977 4.7L / 289 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 70-74 Maverick Emission Vehicles in 50 States
Not Legal for use on 75-77 Maverick Emission Vehicles in 50 States
Ford Mustang 1964 4.7L / 289 / V8
4.3L / 260 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1965 4.7L / 289 / V8
4.3L / 260 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1966 4.7L / 289 / V8 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1967 7.0L / 428 / V8
4.7L / 289 / V8
6.4L / 390 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1968 7.0L / 428 / V8
7.0L / 427 / V8
5.0L / 302 / V8
4.7L / 289 / V8
6.4L / 390 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1969 7.0L / 429 / V8
7.0L / 428 / V8
6.4L / 390 / V8
5.0L / 302 / V8
5.8L / 351 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1970 7.0L / 429 / V8
7.0L / 428 / V8
5.8L / 351 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1971 7.0L / 429 / V8
5.8L / 351 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1972 5.8L / 351 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Mustang 1973 5.0L / 302 / V8
5.8L / 351 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 64-73 Mustang Emission Vehicles in 50 States
Ford Ranchero 1960 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1961 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1962 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1963 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1964 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1965 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1966 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Ford Ranchero 1967 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-67 Ranchero Emission Vehicles in 50 States
Mercury Comet 1960 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-65 Comet Emission Vehicles in 50 States
Mercury Comet 1961 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-65 Comet Emission Vehicles in 50 States
Mercury Comet 1962 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-65 Comet Emission Vehicles in 50 States
Mercury Comet 1963 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-65 Comet Emission Vehicles in 50 States
Mercury Comet 1964 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-65 Comet Emission Vehicles in 50 States
Mercury Comet 1965 Fits 260-302 Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 60-65 Comet Emission Vehicles in 50 States
Mercury Cougar 1967 4.7L / 289 / V8
6.4L / 390 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States
Mercury Cougar 1968 7.0L / 428 / V8
4.7L / 289 / V8
7.0L / 427 / V8
6.4L / 390 / V8
5.0L / 302 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States
Mercury Cougar 1969 7.0L / 429 / V8
7.0L / 428 / V8
6.4L / 390 / V8
5.0L / 302 / V8
5.8L / 351 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States
Mercury Cougar 1970 5.0L / 302 / V8
7.0L / 429 / V8
7.0L / 428 / V8
6.4L / 390 / V8
5.8L / 351 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States
Mercury Cougar 1971 7.0L / 429 / V8
5.8L / 351 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States
Mercury Cougar 1972 5.8L / 351 / V8 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States
Mercury Cougar 1973 7.5L / 460 / V8
6.6L / 400 / V8
5.8L / 351 / V8		 Fits 260-351W Ford Small Block Engines.
Fits TCI or equivalent Mustang II Suspension Rack and Pinion equipped cars only.
Manual Transmission require cable or hydraulic clutch
Will fit with AOD Transmissions.
Fits GT40 "P" head
May require Steering Shaft modifications to fit.
Full-length
with Floor Shifter
Legal for use on 67-73 Cougar Emission Vehicles in 50 States

Specifications:

Collector Attachment 3-Bolt Flange
Collector Diameter 3.0 IN
Collector Port Diameter 3.0 IN
Cylinder Head Port Shape SAP
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 SAP
Primary Tube Outside Diameter 1.75 IN
Proposition 65 www.P65Warnings.ca.gov
Tube Wall Thickness 16 GU
Warranty Time 24 Months

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Doug's Headers 1948-77 Ford/Mercury Small Block with Mustang II Suspension 1 3/4" Long Tube Header D623:
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