Doug's Headers 1968-79 AMC V8 1 3/4" Long Tube Header D103

Name: Doug's Headers 1968-79 AMC V8 1 3/4" Long Tube Header D103
Brand: Doug's Headers
SKU: 5124696
Price: 1603.6383591527106 CAD
Availability: OnlineOnly

from $1,603.64 st

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Model: 5124696

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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

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
D103.pdf	394.72KB
D103-B.pdf	394.72KB

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
American Motors	AMX	1968	6.4L / 390 / V8 5.6L / 343 / V8 4.8L / 290 / V8 4.7L / 290 / V8	AMC Motor Only with Dog leg exhaust port. 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars) Full-length
American Motors	AMX	1969	6.4L / 390 / V8 5.6L / 343 / V8 4.8L / 290 / V8 4.7L / 290 / V8	AMC Motor Only with Dog leg exhaust port. 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars) Full-length
American Motors	AMX	1970	5.9L / 360 / V8 6.4L / 390 / V8	AMC Motor Only with Dog leg exhaust port. Full-length 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars)
American Motors	Ambassador	1968	6.4L / 390 / V8	AMC Motor Only with Dog leg exhaust port. 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars) Full-length
American Motors	Ambassador	1969	6.4L / 390 / V8	AMC Motor Only with Dog leg exhaust port. 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars) Full-length
American Motors	Ambassador	1970	5.0L / 304 / V8 6.4L / 390 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars)
American Motors	Ambassador	1971	5.0L / 304 / V8 6.6L / 401 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Ambassador	1972	5.0L / 304 / V8 6.6L / 401 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Ambassador	1973	5.0L / 304 / V8 6.6L / 401 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Ambassador	1974	5.0L / 304 / V8 6.6L / 401 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Gremlin	1972	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Gremlin	1973	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Gremlin	1974	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Gremlin	1975	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Gremlin	1976	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1970	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1971	5.9L / 360 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1972	5.9L / 360 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1973	5.9L / 360 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1974	5.9L / 360 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1975	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1976	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Hornet	1977	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Javelin	1968	6.4L / 390 / V8 5.6L / 343 / V8 4.7L / 290 / V8	AMC Motor Only with Dog leg exhaust port. 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars) Full-length
American Motors	Javelin	1969	6.4L / 390 / V8 5.6L / 343 / V8 4.7L / 290 / V8	AMC Motor Only with Dog leg exhaust port. 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars) Full-length
American Motors	Javelin	1970	5.0L / 304 / V8 6.4L / 390 / V8	AMC Motor Only with Dog leg exhaust port. Full-length 1968-69 cars require minor modification of passenger side shock tower if using 1970 and newer “Tall Deck” block. Clearance not an issue with original 68-69 block. (Not an issue on 1970 an later cars)
American Motors	Javelin	1971	6.6L / 401 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Javelin	1972	6.6L / 401 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Javelin	1973	6.6L / 401 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Javelin	1974	6.6L / 401 / V8 5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1971	6.6L / 401 / V8 5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1972	6.6L / 401 / V8 5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1973	6.6L / 401 / V8 5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1974	6.6L / 401 / V8 5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1975	5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1976	5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1977	5.0L / 304 / V8 5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Matador	1978	5.9L / 360 / V8	AMC Motor Only with Dog leg exhaust port. Full-length
American Motors	Spirit	1979	5.0L / 304 / V8	AMC Motor Only with Dog leg exhaust port. Full-length

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 1968-79 AMC V8 1 3/4" Long Tube Header D103

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