Photo of header reducers, gaskets and hardware included with Hedman Hedders Photo of dimensions for Hedman Block Hugger Headers This Product is MADE IN THE USA! Photo of Hedman's HTC Polished SIlver Ceramic Finish

Silver-Coated Short-Tube Headers For 1964-72 GTO or LeMans With Pontiac V8

HTC Coated Headers; 1-5/8 in. Tube Dia.; 2-1/2 in. Coll.; SHORTY Design


Product Specifications

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

  • Tube Diameter 1-5/8 in.
  • Tube Style Shorty
  • Air Conditioning Yes
  • Automatic Transmission - Column No
  • Automatic Transmission - Floor Yes
  • Manual Transmission - Column No
  • Manual Transmission - Floor Yes
  • 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 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 HTC Polished Silver Ceramic-Metallic
  • Finish Type HTC SILVER (polished) Ceramic-metallic Coating
  • Flange Style Standard
  • Flange Thickness 0.3125 in.
  • Header Style Mid-Length Tube
  • Notes 64-72 Pontiac GTO, LeMans, Tempest 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.
  • Variations 28170
  • Installation Notes Some heads may require drilling and tapping of end bolt holes.
  • 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.
  • Package Contents Headers, reducers (exhaust adapters), gaskets, mounting hardware
  • Header Material Mild Steel
  • Header Finish HTC Polished Silver Ceramic-Metallic
  • 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 & 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
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      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 - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      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 - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Engine FamilyPontiac 326-455
      NotesPontiac 326-455
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