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Flowtech 31114

Unequal Length Shorty Headers

Flowtech 31114

387-31114

made in usa
jegs shipping
FREE Shipping
Ships from Manufacturer
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$324.95
$292.46
ON SALE - $32.49 OFF
Flowtech 31114 Unequal Length Shorty Headers $292.46
Unequal Length Shorty Headers
  • Chevy 305
  • 1978-1987 Chevelle, El Camino, Olds Cutlass/442
  • 1982-1989 Camaro/Firebird
  • 1.5'' Tube
  • 2.5'' Collector
  • Ceramic Coated

  • Flowtech 31114 Details

    GM Cars

  • Applications with oxygen sensors use reducers 387-10105 for 2-1/2'' three bolt flange
  • Shorty-style header, will also work on catalytic equipped vehicles. Head pipe fabrication is required
  • Modification to stock exhaust is required to retain stock catalytic converters
  • On 1987 models will not fit with factory oil cooler
  • Fitting for exhaust gas temperature sensor is welded to header, hole is not drilled.

  • Specifications:

    Engine Make/Size
    Chevy Small Block (262-400)
    Material
    Mild Steel
    Coating/Finish
    Metallic Ceramic
    Collector Tube Size (in.)
    2.5
    Application
    Automotive
    Tube Diameter
    1.5
    Port Shape
    Round
    Tube Direction
    Down Swept
    Gaskets Included
    Yes
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Shorty
    Motor Mounts Included
    No
    Tuned
    No
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Cross Over Pipe Included
    No
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Weld-Up
    No
    Primary Tube Diameter (in.)
    1 1/2
    Quantity
    Sold as a pair
    Primary Tube Gauge
    18-gauge
    Flange Style
    Standard
    Collector Attachment
    3-bolt flange
    Collector Diameter (in.)
    2.5
    Finish
    Silver Metallic Ceramic
    Tube Size
    1.5
    Manufacturer's Part Number:
    31114

    Performance Plus Fuel Economy at a Price You Can Afford!

    These headers are made of 16-gauge tubing that's welded to O-ring port exhaust flanges on one end and mandrel-formed collectors on the other. You get a premium performance-minded design with a budget-minded attitude!




    Features
  • 16-gauge (.049" thick) cold-rolled mild steel (except stainless steel were noted)
  • Precision engineered for performance, fuel economy, and fit
  • Mandrel-formed plenum increases flow for more power
  • Leakproof O-ring port seals quality tested by FlowTech
  • Finished with black paint or ceramic coating, polished available for some applications

  • Does Flowtech 31114 fit your vehicle?

    Narrow Results

    1985-1986 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: ALL

    1980 OLDSMOBILE CUTLASS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1980 OLDSMOBILE CUTLASS SALON

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1979 OLDSMOBILE CUTLASS SUPREME

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 OLDSMOBILE CUTLASS CALAIS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978 CHEVROLET EL CAMINO

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube
    • Liter: 5.0
    • SubModel: CONQUISTA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1979 OLDSMOBILE CUTLASS CALAIS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985-1987 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1984 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: S/E
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 OLDSMOBILE CUTLASS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: LS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 OLDSMOBILE CUTLASS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1984-1986 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: H
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: S/E
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985-1989 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981-1986 CHEVROLET EL CAMINO

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube
    • Liter: 5.0
    • SubModel: CONQUISTA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1979 OLDSMOBILE CUTLASS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: VISTA CRUISER
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979 OLDSMOBILE CUTLASS

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: VISTA CRUISER BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1986-1987 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1989 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM GTA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982-1983 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 OLDSMOBILE CUTLASS CRUISER

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1982-1983 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1984-1986 PONTIAC FIREBIRD

    • Liter: 5.0
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: G
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1984 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1980 OLDSMOBILE CUTLASS SALON

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1987 CHEVROLET EL CAMINO

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1983-1984 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 OLDSMOBILE CUTLASS SUPREME

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1986 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: S/E
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: SALON

    1980 OLDSMOBILE CUTLASS SUPREME

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1987 CHEVROLET EL CAMINO

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube
    • Liter: 5.0
    • SubModel: SS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978-1979 OLDSMOBILE CUTLASS SUPREME

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1985 PONTIAC FIREBIRD

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: S/E
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1980 OLDSMOBILE CUTLASS CRUISER

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979-1981 CHEVROLET EL CAMINO

    • CC: 5031
    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube
    • Liter: 5.0
    • SubModel: ROYAL KNIGHT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1978 OLDSMOBILE CUTLASS SALON

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • SubModel: 442
    • EngineType: ALL

    1982 OLDSMOBILE CUTLASS CRUISER

    • Fitment_Note: w/Oxy. Sensor- Use Reducer PN[10105FLT] For 2.5 in Flange~Fitting for Exh.Temp.Sensor Welded. If Needed; Hole Can Be Drilled In Tube~Will Fit Dart Sportmans II Angle Plug Heads~w/Oxy. Sensor - Use Reducer PN[10110FLT] For 3 in. Flange
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )
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