Photo of Hedman Hedders for  67-81 F; 64-83 A, 82-88 G; 68-79 X close ratio box. Photo of Hedman Hedders for  67-81 F; 64-83 A, 82-88 G; 68-79 X close ratio box. Photo of Hedman Hedders for  67-81 F; 64-83 A, 82-88 G; 68-79 X close ratio box. Photo of Hedman Hedders for  67-81 F; 64-83 A, 82-88 G; 68-79 X close ratio box. Photo of header reducers, gaskets and hardware included with Hedman Hedders This Product is MADE IN THE USA! Photo of Hedman Hedders for  67-81 F; 64-83 A, 82-88 G; 68-79 X close ratio box.
Photo of Hedman Hedders for  67-81 F; 64-83 A, 82-88 G; 68-79 X close ratio box.

Mid-Length Headers For 67-69 Camaro 283-400, Close Ratio Steering

Standard Uncoated Headers; 1-5/8 in. Tube Dia.; 3 in. Coll.; Mid-Length Design (for close ratio steering boxes)


Product Specifications

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

  • Tube Diameter 1-5/8 in.
  • Tube Style Mid-Length
  • Air Conditioning Yes
  • Automatic Transmission - Column No
  • Automatic Transmission - Floor No
  • Manual Transmission - Column No
  • Manual Transmission - Floor Yes
  • Power Steering 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 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 Uncoated
  • Finish Type UNCOATED Mild Steel! Shipped with Temporary Paint.
  • Flange Style Standard
  • Flange Thickness 0.3125 in.
  • Header Port Shape Oval Port
  • Header Style Mid-Length (close ratio steering)
  • Key Feature Close-Ratio Steering Box
  • Port Shape Oval
  • Product Info This set of headers has been designed specifically for use on vehicles with a close-ratio steering box.
  • Material Mild Steel
  • Tube Design Standard
  • Tube Length Mid-Length Tubes
  • Tube Material Thickness 16g
  • Tube Size 1-5/8 in.
  • Variations 68656
  • 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) 1.625 in.
  • Package Contents Headers, ball and socket 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 27520
  • Replacement Head Flange Gasket 27520
  • California Proposition 65 WARNING: Cancer. For more info visit www.P65Warnings.ca.gov
  • Close Ratio Steering Box YES

Vehicle Applications

      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Year C.I.D. Liter Block Type Cylinders Fuel Type Drive Type
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
      Vehicle Specific Information
      Air ConditioningNo
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorNo
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Emissions Notes1974 and earlier vehicles WITHOUT A.I.R.; Does not require EO if existing emission controls are not removed.
      Footnotes(1) Without smog injection or injection heads.
      (103) Will fit with angle plug heads (Chevy aluminum only, L98).
      (121) Must modify rotary A/C bracket.
      (234) Design with additional clearance for close ratio steering boxes.
      (6) Modification to stock exhaust required to retain catalytic converter.
      Engine FamilySB Chevy 283-400 (Gen 1)
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