Product Summary

Long Tube Header Tube Type, Oval Exhaust Port Shape

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    Key Specs

    MFG. Part #D308
    Header Tube TypeLong Tube
    Exhaust Port ShapeOval
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    See more specs

    Need To Know

    Quick and Easy Returns

    Return Policy

    Doug's Headers D308 Details

    Coated Header for Chevy

    • Camaro (67-81) 265-400
    • Chevelle (64-87) 265-400
    • Chevy II, Nova (68-79) 265-400
    • El Camino (64-87) 265-400
    • Monte Carlo (70-87) 265-400
    • Passenger Car, Wagon (65-89) 265-400 Engine
    This part comes standard with Metallic Ceramic Thermal Barrier Coating (MCTBC). MCTBC protects and extends the life of headers by creating a thermal barrier that significantly lowers underhood temperatures and protects the substrate metal from thermal fatigue. It also provide corrosion resistance to protect it for years to come.

    Please see our online catalog for specific application information.

    Every Dougs 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. Dougs headers are carefully developed on the vehicles they are intended to fit and are re-checked numerous times during the design and manufacturing process.Every Dougs 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. Dougs 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 Metallic Ceramic Thermal Barrier Coating polished to a high luster appearance offering corrosion and heat resistance up to 1400 degrees
    • Doug's Headers D308 1 5/8" 4-Tube Full Length Header Chevrolet 67-81 Camaro 64-77 Chevelle/Malibu 64-77 El Camino 70-77 Monte Carlo 65-89 Passenger Car/Wagon 265-400 Chevrolet Engine Metallic Ceramic Coating
    • Ceramic Coated
    • Collector: 3
    • Port: OVL
    • Primary: 1 5/8
    • exc. states w/Calif. emission stds
    • Fits D-Port heads
    • req. left side AC bracket H7608
    • removal or modification of locking steering column reqd.
    • use left side AC bracket H7608
    • W/short compressors use stock bracket
    • removal/modification of locking steering column reqd.
    • with A/C
    • For Off-Road Use Only
    • with Column Shift
    • with Floor Shifter
    • Doug's Headers D308 1 5/8" 4-Tube Full Length Header Chevrolet 67-81 Camaro 64-77 Chevelle/Malibu 64-77 El Camino 70-77 Monte Carlo 65-89 Passenger Car/Wagon 265-400 Chevrolet Engine Metallic Ceramic Coating
    • Ceramic Coated
    • Collector: 3
    • Port: OVL
    • Primary: 1 5/8
    • exc. states w/Calif. emission stds
    • Fits D-Port heads
    • req. left side AC bracket H7608
    • removal or modification of locking steering column reqd.
    • use left side AC bracket H7608
    • W/short compressors use stock bracket
    • removal/modification of locking steering column reqd.
    • with A/C
    • For Off-Road Use Only
    • with Column Shift
    • with Floor Shifter

    Application

    • 1967-81 Chevy Camaro
      • Fits 265-400 CI engines
      • Does not fit 67-69 Camaro with A/C
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left-side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped
    • 1967-77 Chevy Chevelle/Malibu
      • Fits 265-400 CI engines
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket.
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped
    • 1968-79 Chevy II, Nova
      • Fits 265-400 CI engines
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket.
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped
    • 1964-77 Chevy El Camino
      • Fits 265-400 CI engines
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket.
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped
    • 1970-87 Chevy Monte Carlo
      • Fits 265-400 CI engines
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket.
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped
    • 1965-89 Chevy Passenger Car, Wagon
      • Fits 265-400 CI engines
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket.
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped
    • 1967-81 Pontiac Firebird, Trans Am Engine Swap
      • Fits 265-400 CI Chevy engines
      • Does not fit 67-69 Camaro engine with A/C
      • Fits D-Port cylinder heads including ZZ4 crate engines
      • Fits most angle plug heads
      • Installation requires left side A/C bracket part number H7608.1979 and later vehicles with short compressors can use the stock bracket.
      • Must use non-shell type motor mounts
      • Requires removal or modification of locking steering columns if equipped

    Charts

    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.

    Doug's Headers D308 Specifications

    KEY SPECS
    MFG. Part #D308
    BrandDoug's Headers
    Header Tube TypeLong Tube
    Exhaust Port ShapeOval
    Flange StyleStandard
    Primary Tube Diameter1-5/8"
    Material TypeSteel
    ColorSilver
    Weld-UpNo
    Collector Diameter3 Inch
    FinishCeramic Coated
    Hardware IncludedYes
    Gasket(s) IncludedYes
    GENERAL
    Sold in QuantityPair
    GTIN Code694342507107

    Questions & Answers

    Fitment

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 DZ Small Block Chevy

    • Gen 1 DZ Small Block Chevy

    • Gen 1 L14 Small Block Chevy

    • Gen 1 L14 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • 2-Piece Rear Main Chevy 350

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L14 Small Block Chevy

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • Gen 1 LG3 Small Block Chevy

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 267

    • 2-Piece Rear Main Chevy 267

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 LG3 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 350

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 350

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 400

    • 2-Piece Rear Main Chevy 283

    • Gen 1 L14 Small Block Chevy

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    • 2-Piece Rear Main Chevy 283

    Customer Impersonation Script