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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 HTC Polished SIlver Ceramic Finish

Silver 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- HTC Polished-Silver Ceramic Coated

Part#68336
$594.63
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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 HTC Polished Silver Ceramic-Metallic
  • Finish Type HTC SILVER (polished) Ceramic-metallic Coating
  • Flange Style Standard
  • Flange Thickness 0.375 in.
  • Header Port Shape Round
  • 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 HTC Polished Silver 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
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
      Vehicle Specific Information
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB Chevy 283-400 (Gen 1)
      NotesEngine Swap Headers
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