Which vehicles does the Doug's Headers D3341-B fit?

Fits 1973 to 1974 Buick Apollo, and 3 more makes. Chevrolet LS Engine Swap.; Includes O2 sensor extension harness.; Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.; Includes 3" to 2.5" reducers with O2 fittings.; Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 X-Frame cars; Will not fit manual transmission cars with factory Z bar clutch linkage.; Full-length; Hi-Temp Black Coating

How much is shipping and when does it ship?

It ships Monday, October 5. Ground shipping in Canada is free on orders of $100 and up, $9.99 under that.

Can Northern Performance install it?

Yes. Buy it online and have us install it at our Service Centre. The Service Centre is at 1164 Walkers Line, Burlington, Ontario.

Doug's Headers Long Tube Header 67-69 F Body/68-74 X Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Black Hi Temp Coated

Mfg Part #: D3341-B
NP#: DOUD3341-B
Brand
Fitment Note: Chevrolet LS Engine Swap.; Includes O2 sensor extension harness.; Requires Doug's LS1 adapter plate kit P/N SK100 or equivalent.; Includes 3" to 2.5" reducers with O2 fittings.; Will fit OE Suspension & Detroit Speed & Engineering front subframes on 67-69 Camaro & 68-74 X-Frame cars; Will not fit manual transmission cars with factory Z bar clutch linkage.; Full-length; Hi-Temp Black Coating

Fits 1973 to 1974 Buick Apollo, and 3 more makes. See every vehicle

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

$1,147.99 CAD Free shipping in Canada, ships Monday, October 5

Free shipping in Canada, ships Monday, October 5Free shipping in Canada

Availability:

Book installation at our Service Centre

Does this fit your vehicle?

Does not fit a 2021 Ram 1500. See what it does fit.

Description

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.

Collector Attachment	Slip fit
Collector Diameter	3.0 in
Collector Port Diameter	3.0 in
Color	Black
Cylinder Head Port Shape	Round
Design	Full-length
EGT Port	No
EmissionFullDES	3 - This Product is LEGAL for Closed Course Competition use or Pre-Emissions Controlled Vehicles ONLY. It is Not Legal for use on any Emissions Controlled Vehicle for Street or Off Highway use.
Finish	Hi-Temp Black Coating
Flange Thickness	0.375 in
Gasket Or Seal Included	Yes
Gaskets Included	Yes
Grade Type	Performance
Header Material	Steel
Header Style	Full-length
Material	Steel
Mounting Hardware Included	Yes
Oxygen Sensor Port	Yes
Port Shape	Round
Primary Tube Outside Diameter	1.875 in
Primary Tubing Diameter	1.875 in
Sheen Level	Matte
Tube Wall Thickness	16 ga.
Brand	Doug's Headers
Mfg part #	D3341-B

Fits these vehicles

Year	Make	Model	Engine
1973 - 1974	Buick	Apollo	5.7L 350 V8
1967	Chevrolet	Camaro	4.9L 302 V8, 5.3L 327 V8, 5.7L 350 V8, 6.5L 396 V8
1968	Chevrolet	Camaro	4.9L 302 V8, 5.3L 327 V8, 5.4L 327 V8, 5.7L 350 V8, 6.5L 396 V8
1969	Chevrolet	Camaro	4.9L 302 V8, 5.0L 307 V8, 5.3L 327 V8, 5.4L 327 V8, 5.7L 350 V8, 6.5L 396 V8, 7.0L 427 V8
1968	Chevrolet	Chevy II	5.0L 307 V8, 5.3L 327 V8, 5.4L 327 V8, 5.7L 350 V8, 6.5L 396 V8
1969	Chevrolet	Nova	5.0L 307 V8, 5.7L 350 V8, 6.5L 396 V8
1970	Chevrolet	Nova	5.0L 307 V8, 5.7L 350 V8, 6.5L 396 V8, 6.6L 402 V8, 7.4L 454 V8
1971	Chevrolet	Nova	5.0L 307 V8, 5.7L 350 V8, 6.6L 402 V8, 7.4L 454 V8
1972	Chevrolet	Nova	5.0L 307 V8, 5.7L 350 V8, 6.6L 402 V8
1973	Chevrolet	Nova	5.0L 307 V8, 5.7L 350 V8
1974	Chevrolet	Nova	5.7L 350 V8
1973 - 1974	Oldsmobile	Omega	5.7L 350 V8
1967	Pontiac	Firebird	5.3L 326 V8, 6.6L 400 V8
1968 - 1969	Pontiac	Firebird	5.7L 350 V8, 6.6L 400 V8
1973	Pontiac	Ventura	5.0L 307 V8, 5.7L 350 V8
1974	Pontiac	Ventura	5.7L 350 V8

Doug's Headers Long Tube Header 67-69 F Body/68-74 X Body 4.8-6.2L LS Engine Swap 1 7/8" Primary 3" Collector Black Hi Temp Coated

Does this fit your vehicle?

Description

Fits these vehicles

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