Black Hi-Temp Coated Headers 1964-1994 Small Block Chevy 265-400 1-5/8" Tube Diameter
InfoVehicle Info Needed
DOUG'S HEADERSPART NUMBER: 776-D304-B

Black Hi-Temp Coated Headers 1964-1994 Small Block Chevy 265-400 1-5/8" Tube Diameter

$70326
ShippingShips on Sep 14, 2026
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Small Block Chevy - 1-5/8'' Tube Diameter
    Black Hi-Temp Coated Headers
  • 1964-1994 Small Block Chevy 265-400
  • 1-5/8'' Tube Diameter
  • 3'' Collector
  • Oval Port Shape

    Fits:
  • 1967-1981 Camaro
  • 1964-1983 Chevele/Malibu
  • 1964-1987 El Camino
  • 1978-1988 Monte Carlo
  • 1971-1994 Oldsmobile Passenger/Wagon
  • 1978-1988 Cutlas Supreme
  • 1978-1984 Calais
  • 1978-1983 Oldsmobile Cruiser
  • 1978-1987 Grand Prix
  • 1982-1986 Bonneville 265-400

    Notes:
  • Shorty design for maximum ground clearance.
  • Fits D-Port cylinder heads including ZZ4 crate engines.
  • Will not fit Saginaw close ratio with 825 power steering box.
  • Does not fit 67-69 Camaro with A/C.
  • Will fit most angle plug heads including factoy Chevrolet 'Bow-Tie' heads.
  • Requires removal or modification of locking steering columns if equipped.
  • Installation requires left side A/C bracket part number 776-H7608. 1979 and later vehicles with short compressors can use the stock bracket.

    Emission Code:
  • The product accompanying this document is legal only for off-highway use(except in California or states that have adopted California emission standards),racing use or for use on pre-emission-controlled motor vehicles/motor vehicleengines (pre-1974 domestic vehicles certified to California standards, pre-1974domestic vehicles certified to federal standards and all pre-1974 foreignvehicles), per the manufacturer's application guide.

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Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

Every Doug's Header is Tuned with the Proper Tube Size & Length to Efficiently Remove Exhaust Gasses from Each Cylinder

Headers feature 3/8'' flanges and 16-gauge tubing on passenger car applications. They include all necessary mounting hardware, collector reducers or connection pipes, premium gaskets and detailed instructions. Headers are available in either a Metallic Ceramic Thermal Barrier Coating or a uncoated raw finish. The Metallic Ceramic Thermal Barrier Coating will withstand up to 1400 degree temperatures! This coating is polished which increases corrosion resistance over 60%!

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Features:

  • Thick Flanges Prevent Warping
  • Stitch Welded Ports for Added Strength
  • Machined Sealing Bead Eliminates Leaks
  • Heavy Gauge Tubing for Longer Life
  • Precision-Formed Collectors Reduce Back Pressure
  • CNC Mandrel-Bent Tubing Provides Accurate Fit & Better Flow

    See More Info for Applications Listing

Part TypeHeader
Product LineDoug's Headers for GM Passenger Cars
BrandDOUG'S HEADERS
Package Height11.0
Package Width17.0
Package Length25.0
Weight23.5 PG
Part CategoryPerformance Parts
Steering SystemVarious - Application Specific
Brake SystemVarious - Application Specific
Part FitmentSemi Universal
Vendor Part NumberD304-B
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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