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Flowtech 31500

Long Tube Headers

387-31500

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Flowtech 31500 Long Tube Headers $323.95
Long Tube Headers
  • Chevy 283-400
  • 1966-87 Chevy/GMC 1/2, 3/4 & 1-Ton 2WD/4WD
  • 1966-91 Blazer/Jimmy K5, Suburban 4WD
  • 1967-87 Chevy Blazer & GMC Jimmy 2WD
  • 1988-91 Chevy/GMC 1-Ton Crew Cab 2WD/4WD
  • 1.5" Tube
  • 3'' Collector
  • Ceramic Coated

  • Flowtech 31500 Details

    GM Truck/SUV

  • For emissions A.I.R. Injection Tubes use part number 387-11500S
  • Must modify stock exhaust to retain catalytic converters
  • Installation Requires A/C Bracket 387-10042
  • Applications with oxygen sensors use reducers 387-10110 for 3'' three bolt flange
  • Pre-1970 Models w/Exhaust Manifold Mounted Alt./Gen. Use Bracket 387-10031
  • May require clutch linkage modifications
  • On 1983-84 4WD, it is necessary to remove the rubber stopper below the starter
  • On 1988-91 1-Ton Crew Cab Pickup, only fits C30 chassis
  • Will not fit angle plug heads

  • Specifications:

    Tube Diameter
    1.5
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Engine Make/Size
    Chevy Small Block (262-400)
    Tube Direction
    Down Swept
    Coating/Finish
    Metallic Ceramic
    Port Shape
    Round
    Material
    Mild Steel
    Gaskets Included
    Yes
    Header Style
    Long Tube
    Finish
    Silver Metallic Ceramic
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    3-bolt flange
    Cross Over Pipe Included
    No
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 1/2
    Primary Tube Gauge
    18-gauge
    Quantity
    Sold as a pair
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    31500FLT

    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 31500 fit your vehicle?

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    Liter
    Year: 1973
    Make: CHEVROLET
    Model: C10 PICKUP

    1973 CHEVROLET C10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1973 CHEVROLET C10 PICKUP

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972-1973 CHEVROLET C10 PICKUP

    • CC: 5031
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1973 CHEVROLET C10 PICKUP

    • CC: 5736
    • Fitment_Note: Req. A/C Bracket PN[10042FLT]~May Require Clutch Linkage Modification~Does Not Fit w/Angle Plug Heads~Must Modify Stock Exhaust To Retain Cat. Converter
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
    31500 - FlowTech Headers is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from installed flow tech ceramic coated headers ,,worked out great sounds really good opened up,thanks
    Date published: 2015-02-14
    • y_2017, m_8, d_18, h_13
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    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_188248, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
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