šŸŒ We Ship Worldwide Learn more

šŸ’µ Afterpay available, shop now, pay later Learn more

šŸ’¬ Customer Support Click here

FlowTech  |  SKU: 11546FLT

Flowtech Upright Headers - 11546FLT

Fits Small Block Chevy, 1-3/4" Primary Tubes, 409 Stainless Steel Upright Headers- Natural Finish

Regular price $988.10 NZD + GST
Shipping calculated at checkout.
⚠ Special Order Item — ships direct from supplier. No returns, exchanges, or cancellations once processed. Please allow 7–20 days shipping.

Description

Fits Small Block Chevy, 1-3/4" Primary Tubes, 409 Stainless Steel Upright Headers- Natural Finish

Part Number: 11546FLT

Flowtech Headers are the perfect combination of quality and value. These Small Block Chevy Upright headers available in 1-5/8" and 1-3/4" tube diameters are ideal for even big cubic inch Small Block Chevy engines. They feature a merged collector coupled with a collector spear that is welded inside the collector. These components help to improve the flow and performance of the header.

Features and Benefits

• CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
• Heavy duty 16-gauge 409SS tubing for increased strength and durability
• 1-5/8ā€ and 1-3/4ā€ tubing diameters available for increased exhaust flow increasing performance and improved throttle response
• 3ā€ collector for maximum strength and exhaust flow
• Extra thick header flange for a leak-free seal and maximum strength
• Welded-in collector merge spears to control exhaust gas re-entry into primary tubes

Gaskets and hardware sold separately.

Specifications

  • Specifications
    Air Injection TubesNo
    ApplicationSmall Block Chevy
    Bolt size3/8-16 x 3/4
    Bolts IncludedNo
    BrandFlowtech Exhaust
    California Proposition 65 RequiredYes
    CARB (California) CompliantNo
    Catalytic Converter Quantity0
    CategoryExhaust
    Collector AttachmentWeld-On
    Collector Diameter3.00
    Collector Length12.00
    Collector Port Diameter3.00
    Collector Reducer IncludedNo
    Collector Reducer Outlet DiameterN/A
    ColorSilver
    Cylinder Head Flange Thickness3/8"
    DesignUpright
    Drive4WD
    Drive2WD
    EGT (Exhaust Gas Temperature) PortNo
    EGT PortNo
    Emission Code4
    EngineChevrolet Small Block Gen I
    FinishNatural
    Flange Thickness0.375
    Flange Thickness3/8"
    Gasket Or Seal IncludedNo
    Grade TypePerformance
    Header FinishNatural
    Header SeriesFlowtech
    Header StyleUpright
    Installed Height37.00
    Material304 Stainless Steel
    Mounting Hardware IncludedNo
    Oxygen Sensor PortNo
    part typeExhaust Header
    Port ShapeSquare
    Primary Tubing Diameter1-3/4
    Primary Tubing Diameter1.75
    Product TypeHeaders
    QuantitySold as a Pair
    Sheen LevelSemi-Gloss
    Sub CategoryExhaust Manifolds
    Tube Material409 Stainless Steel
    Tube Wall Thickness16
    Tube Wall Thickness (GA)16GA
    WarningCalifornia Proposition 65

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.