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Photo of header reducers, gaskets and hardware included with Hedman Hedders This Product is MADE IN THE USA!

LONG-TUBE E.O. HEADERS For 67-91 GM 396-454 TRUCKS With A.I.R.

Standard-Duty Uncoated, 50-State, Long-Tube Headers For 1968-95 CHEVY/GMC Class A Motorhomes; 396-454 BB Chevy with A.I.R. (Centered Engine Chassis Only); 1-3/4 in. Tubes; 3 in. Ball/Socket Collector

Part#69121
$639.43
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Product Specifications

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

  • Tube Diameter 1-3/4 in.
  • Tube Style Long Tubes
  • Air Conditioning Yes
  • Automatic Transmission - Column Yes
  • Automatic Transmission - Floor Yes
  • Manual Transmission - Column Yes
  • Manual Transmission - Floor Yes
  • Collector Attachment 3 in.
  • Collector Diameter 3 in.
  • Collector Size 3 in.
  • Collector Style BALL and SOCKET Style (Gasketless)
  • 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. # Yes
  • Emissions Notes EO# D167-33 (click here for covered vehicles in document on ARB.CA.GOV website)
  • Finish Uncoated
  • Finish Type UNCOATED Mild Steel! Shipped with Temporary Paint.
  • Flange Style Standard
  • Flange Thickness 0.375 in.
  • Header Port Shape Square
  • Header Style Long Tube
  • Notes 68-95 GM Class A Motorhome SUV 396-502 2WD w/A.I.R.
  • Port Shape Square
  • Power Steering Yes
  • Material Mild Steel
  • Tube Design Standard
  • Tube Length Long Tubes
  • Tube Material Thickness 16g
  • Tube Size 1-3/4 in.
  • Variations 66121, 69821
  • with A.I.R. System Yes
  • 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) 1.75 in.
  • Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
  • Header Material Mild Steel
  • Header Finish Uncoated
  • Cylinder Head Port Shape Square
  • Cylinder Head Stock Profile Heads
  • Header Construction MILD STEEL- Standard-Duty
  • Replacement Gasket 27550
  • Replacement Head Flange Gasket 27550
  • 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 - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnYes
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorNo
      Footnotes(225) Designed for use with a Trans-Dapt throttle body spacer.
      (38) 16 gauge tubing.
      (4) Includes parts necessary to retain emission devices. (50 State)
      (42) Square port headers.
      (5) With A.I.R. system.
      (6) Modification to stock exhaust required to retain catalytic converter.
      E.O. NumberD167-27
      NotesCHEVROLET Class "A" Motorhomes with a 396-454 BB Chevy
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