Block Hugger Header for Small Block Chevy Engine Swap Applications [Polished]
InfoVehicle Info Needed
FLOWTECHPART NUMBER: 387-11705-7

Block Hugger Header for Small Block Chevy Engine Swap Applications [Polished]

$56195
ShippingShips on 09/21/2026
Lowest PriceLowest Price Guarantee

Chevy
Block Hugger Exhaust Header
  • Small Block Chevy Engine Swap Applications
  • 1 5/8 In. Primary Tubes, 2.50 In. Collector
  • 304 Stainless Steel Construction
  • Polished Finish
  • Sold As a Pair

    A performance header upgrade for the Small Block Chevy platform, engineered to improve exhaust flow and add horsepower over the stock manifold.

    Flowtech Block Hugger Header Features:

    • 1 5/8 in. primary tube diameter for optimized exhaust velocity.
    • 2.50 in. collector diameter for a smooth transition into the exhaust system.
    • 304 Stainless Steel construction with a polished finish for durability.
    • Sold as a Pair, complete with mounting hardware and gaskets for installation.
  • Part TypeHeader
    BrandFLOWTECH
    Package Height10.7
    Package Width15.8
    Package Length21.5
    Weight16.29 PG
    Part CategoryPerformance Parts
    Coating/FinishStainless Steel
    Header Flange Thickness0.375 in.
    Tube DirectionDown Swept
    ColorSilver
    QuantityPair
    Material304 Stainless Steel
    Engine Make/SizeChevy Small Block Gen I
    Port ShapeD-Port
    Tube Size1.625 in (41.3 mm)
    Carb CompliantNo
    Collector Diameter2.50 in.
    Collector Tube Size2.5 in (63.5 mm)
    Part FitmentUniversal
    FinishPolished
    ApplicationAutomotive
    Header StyleBlock Hugger
    Grade TypePerformance
    Tube Diameter1.625 in (41.3 mm)
    Primary Tube Diameter1 5/8 in.
    Vendor Part Number11705-7FLT
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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