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Doug's Headers D322-B Full Length Header, 2 In, 64-67 Chevelle, Black

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#447D322B

Doug's Headers D322-B Full Length Header, 2 In, 64-67 Chevelle, Black

Name: Doug's Headers D322-B Full Length Header, 2 In, 64-67 Chevelle, Black
Brand: Doug's Headers
SKU: 447D322B
Price: 973.47 USD
Availability: InStock

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$973.47

/set

Factory Shipped

$1,070.82

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Product Summary

Long Tube Header Tube Type, Standard Flange Style

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Key Specs

MFG. Part #	D322-B
Header Tube Type	Long Tube
Flange Style	Standard
Primary Tube Diameter	2"
Material Type	Steel

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Need To Know

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855.313.9176

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Doug's Headers D322-B Details

Doug's PASSENGER CAR HEADERS Long Tube Hi-Temp Black Coated Header development and design is complex and requires a substantial amount of time and resources to do the job right! Many manufacturers are unwilling to make the commitment and instead offer compromised headers at lower prices. Doug's will not compromise performance, quality or fit to compete with inferior designs at cheap prices. Every Doug's header is tuned with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses resulting in a dramatic increases in horsepower and torque. Doug's headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.

3/8" Thick machined flanges...no warping
CNC mandrel bent tubes... accurate fit & better flow
Precision formed long transition collectors and long tube design... reduces backpressure and increases higher RPM horsepower
Heavy 16 gauge tubing...longer life
Tubes are pre-polished to remove scratches and the header isfinished with a Hi-Temp Black Coating

Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating
Black
Collector: 3 1/2
Port: SAP
Primary: 2
Requires Big block frame stands and mounts
Does not fit w/ power glide trans
exc. states w/Calif. emission stds
Will not fit with Saginaw 825 Steering Box
with Floor Shifter
without A/C
For Off-Road Use Only

Doug's Headers D322-B 2" 4-Tube Full Length Header Chevrolet Chevelle Big Block Chevrolet 64-67 Hi-Temp Black Coating
Black
Collector: 3 1/2
Port: SAP
Primary: 2
Requires Big block frame stands and mounts
Does not fit w/ power glide trans
exc. states w/Calif. emission stds
Will not fit with Saginaw 825 Steering Box
with Floor Shifter
without A/C
For Off-Road Use Only

Application

1965-1967 Chevrolet Chevelle 6.5L/396 V8
1966-1967 Chevrolet El Camino 6.5L/396 V8
1965-1967 Chevrolet Malibu 6.5L/396 V8

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Aeromotive & PerTronix Black Friday 10% Off Sale

Black Friday Savings Are Here! From November 1 2026 through November 30 2026, save 10% on all Aeromotive and PerTronix products, including top performance brands like Doug's Headers, Taylor Cable, and JBA Performance Exhaust. Whether you're upgrading your fuel system, ignition components, headers, spark plug wires, or exhaust setup, this limited-time offer makes it easy to get premium performance parts at a great price. No coupon required, just shop qualifying Aeromotive and PerTronix brands and enjoy instant savings all month long.

Guides & Documents

Choosing the Right Headers

Headers Installation Instructions (447D322B)

CARB Warning

For use on pre-1966 vehicles only

Emissions warning: this part only legal for sale or use in California if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. ++any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering there are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Doug's Headers D322-B Specifications

KEY SPECS
MFG. Part #	D322-B
Brand	Doug's Headers
Header Tube Type	Long Tube
Flange Style	Standard
Primary Tube Diameter	2"
Material Type	Steel
Color	Black
Weld-Up	No
Collector Diameter	3-1/2 Inch
Finish	Hi-Temp Black
Hardware Included	Yes
Gasket(s) Included	Yes

GENERAL
Sold in Quantity	Pair
GTIN Code	694342542757

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Fitment

1965-1969 Chevy Bel Air

396 Chevy Big Block V8

1965-1969 Chevy Biscayne

396 Chevy Big Block V8

1969 Chevy Brookwood

396 Chevy Big Block V8

1969 Chevy C10

396 Chevy Big Block V8

1968-1969 Chevy C10 Suburban

396 Chevy Big Block V8

1968-1969 Chevy C20

396 Chevy Big Block V8

1968-1969 Chevy C20 Suburban

396 Chevy Big Block V8

1968-1969 Chevy C30

396 Chevy Big Block V8

1967 Chevy Camaro

Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78

1968-1969 Chevy Camaro

Chevy Big Block V8 Mark IV 396 L34
Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78

1966-1969 Chevy Caprice

396 Chevy Big Block V8

1965-1969 Chevy Chevelle

396 Chevy Big Block V8

1968 Chevy Chevy II

396 Chevy Big Block V8

1965 Chevy Corvette

396 Chevy Big Block V8

1966-1969 Chevy El Camino

396 Chevy Big Block V8

1969 Chevy Estate

396 Chevy Big Block V8

1965-1969 Chevy Impala

396 Chevy Big Block V8

1969 Chevy K10

396 Chevy Big Block V8

1968-1969 Chevy K10 Suburban

396 Chevy Big Block V8

1968-1969 Chevy K20

396 Chevy Big Block V8

1968-1969 Chevy K20 Suburban

396 Chevy Big Block V8

1968-1969 Chevy K30

396 Chevy Big Block V8

1969 Chevy Kingswood

396 Chevy Big Block V8

1965-1967 Chevy Malibu

396 Chevy Big Block V8

1969 Chevy Nova

396 Chevy Big Block V8

1969 Chevy Townsman

396 Chevy Big Block V8

1967-1970 GMC C25/C2500 Pickup

396 Chevy Big Block V8

1967-1970 GMC C25/C2500 Suburban

396 Chevy Big Block V8

1967-1970 GMC C35/C3500 Pickup

396 Chevy Big Block V8

1967-1970 GMC K25/K2500 Pickup

396 Chevy Big Block V8

1967-1970 GMC K25/K2500 Suburban

396 Chevy Big Block V8

1967-1970 GMC K35/K3500 Pickup

396 Chevy Big Block V8

1967 GMC Suburban

396 Chevy Big Block V8