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Photo of header reducers, gaskets and hardware included with Hedman Hedders This Product is MADE IN THE USA! Photo of Hedman's Black-Maxx Satin Black Ceramic-metallic header finish.

Black Mid-Length Swap Headers For 283-400 in 1971-77 Vega, Monza

Swap Headers For SB Chevy (Gen 1) 283-400 Engine in 1971-77 Chevy Vega, Monza and other GM H-Body Cars; 1-1/2 in. Diameter Mid-Length Tubes; 2-1/2 in. Gasket-Style Collector;; Mild Steel Construction- BLACK MAXX Satin-Black Ceramic Coated

Part#68333
$607.54

Product Specifications

[PLEASE REVIEW THE FOLLOWING PRODUCT ATTRIBUTES & VEHICLE APPLICATION FOOTNOTES SPECIFIC TO YOUR VEHICLE, THOROUGHLY]

  • Tube Diameter 1-1/2 in.
  • Tube Style Mid-Length
  • Footnotes 148. Must use Trans Dapt Motor Mount #4686, TH350 and 168 tooth flywheel
  • Collector Attachment 2-1/2 in.
  • Collector Diameter 2-1/2 in.
  • Collector Size 2-1/2 in.
  • Collector Style 3-Bolt Gasket Style Flange
  • Reducer Outlet Size 2-1/2 in.
  • Exhaust System Dia 2-1/2 in.
  • Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
  • E.O. # No
  • Emissions Notes Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
  • Finish BLACK MAXX Satin Black Ceramic-Metallic
  • Finish Type BLACK MAXX- Black Ceramic-Metallic Coating
  • COATED HEADERS DURING ENGINE BREAK-IN PERIOD
    CLICK FOR IMPORTANT INFO REGARDING HEADER COATINGS DURING ENGINE BREAK-IN!
  • Flange Style Standard
  • Flange Thickness 0.375 in.
  • Header Port Shape Round Port
  • Header Style Mid-Length Tube
  • Notes 71-77 Vega, Moza Chevrolet V8 swap
  • Port Shape Round
  • Material Mild Steel
  • Tube Design Standard
  • Tube Length Mid-Length Tubes
  • Tube Material Thickness 16g
  • Tube Size 1-1/2 in.
  • with A.I.R. System No
  • with EGR No
  • Weld-Up No
  • Tuned No
  • Bolts/Studs Included Yes
  • Catalytic Converter(s) Included No
  • Collector Bolts Included Yes
  • Crossover Pipe Included No
  • Gasket Or Seal Included Yes
  • Header Fasteners Included Yes
  • Installation Hardware Included Yes
  • Motor Mounts Included No
  • Mounting Hardware Included Yes
  • Reducers Included Yes
  • Y-Pipe Included No
  • Quantity Sold as a pair.
  • Primary Tube Gauge 16g
  • Primary Tube Diameter (in) 1.50 in.
  • Package Contents Headers, reducers (exhaust adapters), gaskets, mounting hardware
  • Header Material Mild Steel
  • Header Finish BLACK MAXX Satin Black Ceramic-Metallic
  • Cylinder Head Port Shape Round
  • Cylinder Head Stock Profile Heads
  • Header Construction MILD STEEL- Standard-Duty
  • Replacement Gasket 27500
  • Replacement Head Flange Gasket 27500
  • California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov

Vehicle Applications

      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
      Vehicle Specific Information
      Engine FamilySB Chevy 283-400 (Gen 1)
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      NotesEngine Swap Headers
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