28164-STEPPED-Uncoated Hedders; 1-5/8 Hedman Hedders for 70-79 Firebird, Trans Am 326-455 28164-STEPPED-Uncoated Hedders; 1-5/8 Photo of dimensions for Hedman Block Hugger Headers Photo of header reducers, gaskets and hardware included with Hedman Hedders This Product is MADE IN THE USA! 28164- STEPPED-Uncoated Hedders; 1-5/8
28164- STEPPED-Uncoated Hedders; 1-5/8

Shorty Headers For 1970-79 Pontiac Firebird with Pontiac 326-455

1970-79 Pontiac Firebird Headers; Pontiac 326-455; 1-5/8 in. x 1-3/4 in. Stepped, Short Tube Design- Uncoated Mild Steel


Product Specifications

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

  • Tube Diameter 1-5/8 in. x 1-3/4 in.
  • Tube Style Shorty
  • Air Conditioning Yes
  • Automatic Transmission - Column No
  • Automatic Transmission - Floor Yes
  • Manual Transmission - Column No
  • Manual Transmission - Floor No
  • Collector Attachment 3 in.
  • Collector Diameter 3 in.
  • Collector Size 3 in.
  • Collector Style 3-Bolt Gasket Style Flange
  • Reducer Outlet Size 2-1/2 in.
  • Exhaust System Dia 2-1/2 in.
  • Contents headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
  • E.O. # No
  • Emissions Notes Not Legal For Street Use on '75-Later Model Years! Legal for off-road use only.
  • Finish Uncoated
  • Finish Type UNCOATED Mild Steel! Shipped with Temporary Paint.
  • Flange Style Standard
  • Flange Thickness 0.3125 in.
  • Header Style Short Tube
  • Notes 70-79 Firebird, Trans Am 326-455
  • Power Steering Yes
  • Material Mild Steel
  • Tube Design Standard
  • Tube Length Short Tubes
  • Tube Material Thickness 16g
  • Tube Size 1-5/8 in. x 1-3/4 in.
  • Variations 26164
  • with A.I.R. System No
  • with EGR No
  • Weld-Up No
  • Tuned No
  • Bolts/Studs Included Yes
  • Catalytic Converter(s) Included No
  • 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) 1.625 in. x 1.75 in.
  • Package Contents Headers, reducers (exhaust adapters), gaskets, mounting hardware
  • Header Material Mild Steel
  • Header Finish Uncoated
  • Cylinder Head Port Shape Oval
  • Cylinder Head Stock Profile Heads
  • Header Construction MILD STEEL- Standard-Duty
  • Replacement Gasket 27600
  • Replacement Head Flange Gasket 27600
  • California Proposition 65 WARNING: Cancer. 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
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      Emissions Notes1974 and earlier vehicles WITH A.I.R.: Does not require EO if existing emission controls are not removed.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(1) Without smog injection or injection heads.
      (10) Not For Ram Air III or IV style heads.
      (23) Some heads require drilling and tapping of end holes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
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