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Doug's Headers D330-B Full Length Header 1-3/4 In, 78-87 Chevelle, Blk

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#447D330B

Doug's Headers D330-B Full Length Header 1-3/4 In, 78-87 Chevelle, Blk

Name: Doug's Headers D330-B Full Length Header 1-3/4 In, 78-87 Chevelle, Blk
Brand: Doug's Headers
SKU: 447D330B
Price: 668.07 USD
Availability: InStock

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1 Question

$668.07

/set

Factory Shipped

$742.30

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Product Summary

Long Tube Header Tube Type, Standard Flange Style

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Key Specs

MFG. Part #	D330-B
Header Tube Type	Long Tube
Flange Style	Standard
Primary Tube Diameter	1-3/4"
Material Type	Steel

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Need To Know

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855.313.9176

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Doug's Headers D330-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 D330-B 1 3/4" 4-Tube Full Length Header Chevelle Small Block Chevrolet 78-87 Hi-Temp Black Coating
Black
Collector: 3
Port: SAP
Primary: 1 3/4
exc. states w/Calif. emission stds
One tube each side over frame
Reducers avail. W/O2 sensor fitting
Fits 168-tooth flywheel if used W/Powermaster starter PN 9500
with A/C
For Off-Road Use Only

Doug's Headers D330-B 1 3/4" 4-Tube Full Length Header Chevelle Small Block Chevrolet 78-87 Hi-Temp Black Coating
Black
Collector: 3
Port: SAP
Primary: 1 3/4
exc. states w/Calif. emission stds
One tube each side over frame
Reducers avail. W/O2 sensor fitting
Fits 168-tooth flywheel if used W/Powermaster starter PN 9500
with A/C
For Off-Road Use Only

Application

1979-1982 Chevrolet Malibu 4.4L/267 V8
1978-1983 Chevrolet Malibu 5.7L/350 V8
1978-1983 Chevrolet Malibu 5L/305 V8
1979-1982 Chevrolet Monte Carlo 4.4L/267 V8
1982-1984 Chevrolet Monte Carlo 5.7L/350 V8
1978-1987 Chevrolet Monte Carlo 5L/305 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 (447D330B)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or 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 D330-B Specifications

KEY SPECS
MFG. Part #	D330-B
Brand	Doug's Headers
Header Tube Type	Long Tube
Flange Style	Standard
Primary Tube Diameter	1-3/4"
Material Type	Steel
Color	Black
Weld-Up	No
Collector Diameter	3 Inch
Finish	Hi-Temp Black
Hardware Included	Yes
Gasket(s) Included	Yes

GENERAL
Sold in Quantity	Pair
GTIN Code	694342544324

Ratings & Reviews

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Questions & Answers

1 Question • 1 Answer

Sort Questions

Will these work with angle plug heads

by Marcus

• 2 years ago

1 answer

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Fitment

1976-1982 Chevy C10

Gen 1 LG3 Small Block Chevy

1983 Chevy C10

2-Piece Rear Main Chevy 350
Gen 1 LG3 Small Block Chevy

1984 Chevy C10

Gen 1 LG3 Small Block Chevy

1985 Chevy C10

2-Piece Rear Main Chevy 350
Gen 1 LG3 Small Block Chevy

1986 Chevy C10

Gen 1 LG3 Small Block Chevy

1976-1982 Chevy C10 Suburban

Gen 1 LG3 Small Block Chevy

1983 Chevy C10 Suburban

2-Piece Rear Main Chevy 350

1985 Chevy C10 Suburban

2-Piece Rear Main Chevy 350

1977-1982 Chevy C20

Gen 1 LG3 Small Block Chevy

1976-1978 Chevy C20 Suburban

Gen 1 LG3 Small Block Chevy

1978-1979 Chevy C30

Gen 1 LG3 Small Block Chevy

1976-1979 Chevy Camaro

Gen 1 LG3 Small Block Chevy

1980-1981 Chevy Camaro

2-Piece Rear Main Chevy 267
Gen 1 LG3 Small Block Chevy

1982 Chevy Camaro

Gen 1 LG3 Small Block Chevy

1977 Chevy Caprice

Gen 1 LG3 Small Block Chevy

1980-1982 Chevy Caprice

2-Piece Rear Main Chevy 267

1983 Chevy Caprice

2-Piece Rear Main Chevy 350

1985 Chevy Caprice

2-Piece Rear Main Chevy 350

1980 Chevy Corvette

Gen 1 LG3 Small Block Chevy

1985 Chevy Corvette

2-Piece Rear Main Chevy 350

1976-1977 Chevy El Camino

Gen 1 LG3 Small Block Chevy

1978 Chevy El Camino

2-Piece Rear Main Chevy 350
Gen 1 LG3 Small Block Chevy

1979 Chevy El Camino

2-Piece Rear Main Chevy 267
2-Piece Rear Main Chevy 350
Gen 1 LG3 Small Block Chevy

1980-1982 Chevy El Camino

2-Piece Rear Main Chevy 267
Gen 1 LG3 Small Block Chevy

1983 Chevy El Camino

2-Piece Rear Main Chevy 350

1977-1982 Chevy G10

Gen 1 LG3 Small Block Chevy

1970 Chevy G10 Van

2-Piece Rear Main Chevy 350

1977-1982 Chevy G20

Gen 1 LG3 Small Block Chevy

1978-1979 Chevy G30

Gen 1 LG3 Small Block Chevy

1982 Chevy G30

Gen 1 LG3 Small Block Chevy

1970 Chevy G30 Van

2-Piece Rear Main Chevy 350

1977-1979 Chevy Impala

Gen 1 LG3 Small Block Chevy

1980-1982 Chevy Impala

2-Piece Rear Main Chevy 267
Gen 1 LG3 Small Block Chevy

1983 Chevy Impala

2-Piece Rear Main Chevy 350

1985 Chevy Impala

2-Piece Rear Main Chevy 350

1977-1979 Chevy K10

Gen 1 LG3 Small Block Chevy

1981-1982 Chevy K10

Gen 1 LG3 Small Block Chevy

1976-1982 Chevy K10 Suburban

Gen 1 LG3 Small Block Chevy

1977-1978 Chevy K20

Gen 1 LG3 Small Block Chevy

1980 Chevy K20

Gen 1 LG3 Small Block Chevy

1977-1978 Chevy K20 Suburban

Gen 1 LG3 Small Block Chevy

1970-1974 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1977-1981 Chevy K5 Blazer

Gen 1 LG3 Small Block Chevy

1983 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1985 Chevy K5 Blazer

2-Piece Rear Main Chevy 350

1976 Chevy Laguna

2-Piece Rear Main Chevy 350
Gen 1 LG3 Small Block Chevy

1976-1978 Chevy Malibu

Gen 1 LG3 Small Block Chevy

1979-1982 Chevy Malibu

2-Piece Rear Main Chevy 267
Gen 1 LG3 Small Block Chevy

1970-1971 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1973-1975 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1976-1977 Chevy Monte Carlo

Gen 1 LG3 Small Block Chevy

1979-1981 Chevy Monte Carlo

2-Piece Rear Main Chevy 267

1982 Chevy Monte Carlo

2-Piece Rear Main Chevy 267
2-Piece Rear Main Chevy 350

1983 Chevy Monte Carlo

2-Piece Rear Main Chevy 350

1976-1979 Chevy Monza

Gen 1 LG3 Small Block Chevy

1975 Chevy Nova

2-Piece Rear Main Chevy 350

1976-1979 Chevy Nova

Gen 1 LG3 Small Block Chevy

1980-1983 Chevy P30

2-Piece Rear Main Chevy 350

1985 Chevy P30

2-Piece Rear Main Chevy 350

1970 Chevy P30 Van

2-Piece Rear Main Chevy 350

1967 GMC C15/C1500 Suburban

2-Piece Rear Main Chevy 350

1980-1984 GMC C1500

2-Piece Rear Main Chevy 350

1980-1986 GMC C1500 Suburban

2-Piece Rear Main Chevy 350

1978-1987 GMC Caballero

2-Piece Rear Main Chevy 350

1975-1978 GMC G15

2-Piece Rear Main Chevy 350

1967-1974 GMC G15/G1500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G1500

2-Piece Rear Main Chevy 350

1975-1978 GMC G25

2-Piece Rear Main Chevy 350

1967-1974 GMC G25/G2500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G2500

2-Piece Rear Main Chevy 350

1975-1978 GMC G35

2-Piece Rear Main Chevy 350

1967 GMC G35/G3500 Van

2-Piece Rear Main Chevy 350

1970-1974 GMC G35/G3500 Van

2-Piece Rear Main Chevy 350

1979-1986 GMC G3500

2-Piece Rear Main Chevy 350

1974-1977 GMC Jimmy

2-Piece Rear Main Chevy 350

1983-1984 GMC Jimmy

2-Piece Rear Main Chevy 350

1979-1984 GMC K1500

2-Piece Rear Main Chevy 350

1979-1984 GMC K2500

2-Piece Rear Main Chevy 350