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Doug's Headers D3364Y-2

Metallic Ceramic Coated Headers 1973-91 Chevy/GMC Truck/SUV 4WD 265-400

Doug's Headers D3364Y-2


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Doug's Headers D3364Y-2 Metallic Ceramic Coated Headers 1973-91 Chevy/GMC Truck/SUV 4WD 265-400 $648.99
To order this item contact Customer Service at 1-800-345-4545.
Metallic Ceramic Coated Headers
  • 1973-91 Chevy/GMC Truck/SUV 4WD 265-400
  • 1-5/8'' to 2'' Tube Diameter
  • 2-1/2'' Collector
  • Oval Port Shape
  • Tri-Y Design

  • Doug's Headers D3364Y-2 Details

    1973-91 Chevy 265-400


    • 1973-87 Chevy/GMC 1/2-Ton, 3/4-Ton, 1-Ton 1500, 2500, 3500 Trucks
    • 1973-91 Blazer, Jimmy, Suburban, Tahoe, Yukon
    • 1973-91 Chevy/GMC 1-Ton 3500, 2WD, Crew, Standard Cab Dually


    • Will fit most angle plug heads including factory Chevrolet ''Bow-Tie'' heads.
    • Installation requires left side A/C bracket part number 776-H7608. 1979 and later vehicles with short compressors can use the stock bracket.
    • 50-State Smog Legal header C.A.R.B E.O. #D-57-19.
    • Drivers side catalytic converter.
    • 2-1/2'' catalytic converter.

    Emission Code:

    • The product accompanying this document has been granted a California Air Resources Board (CARB) exemption, an ''EO'' number, or is a direct orconsolidated replacement part. It is 50-state legal, per the manufacturer'sapplication guide.

    Tri-Y, Shorty, or Full Headers for GM Trucks and SUVs

    With the proper tube size/length for efficient exhaust gas removal, these headers have 3/8" flanges and 16-gauge tubing. All necessary mounting hardware, gaskets, and collector reducers or connection pipes included.

  • Mandrel-bent 16-gauge tubing offers accurate fit, better flow, and longer life
  • 3/8" flanges prevent warping
  • Stitch-welded ports add strength
  • Machined sealing bead eliminates leaks
  • Precision-formed collectors reduce backpressure
  • Available uncoated (raw) or with a metallic ceramic thermal barrier
  • Metallic coating withstands up to 1400° and is polished to increase corrosion resistance over 60%

  • Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations