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Tri-5 Headers
InfoVehicle Info Needed
PATRIOT EXHAUSTPART NUMBER: 737-H8050

Tri-5 Headers

$42332$470.35You Save$47.03
ShippingShips on 11/09/2026
Lowest PriceLowest Price Guarantee

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Tri-5 Headers
  • Tri-5 Headers
  • 265-400 Small Block
  • 1-3/4'' Primary Tubes
  • 3'' Collector
  • Rectangular Port Shape
  • Raw Finish

    Fits:
    • 1955-1957 Passenger Car/Wagon/Nomad
    Notes:
    • Will fit most angle plug heads.
    • Fits manual and auto trans floor shifts only.
    • Fits with Danchuk style engine and rear transmission mounts or equivalent and stock or 605 steering boxes.

    AutomaticManual
    A/CP/BP/SColumnFloorColumnFloor
    YYYNYNY

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

      • Patriot Tri-5 Headers fit 55-57 Chevy passenger cars accomodating GM 605 power steering boxes, most motor mounts and distributor installations. Extra ground clearance makes lowered cars drivable and exhaust system installation easy. Available in plain or metallic ceramic coated.
    Part TypeHeader
    Product LinePatriot Tri-5 Headers
    BrandPATRIOT EXHAUST
    Package Height12.0
    Package Width21.0
    Package Length39.0
    Weight34.2 PG
    Part CategoryPerformance Parts
    PositionN/A
    Header FinishNatural
    QuantitySold as a pair
    Bolts/Studs IncludedYes
    Cylinder Head Port ShapeRectangular
    Transmission Mount IncludedNo
    Header MaterialSteel
    Gaskets IncludedYes
    Weld-UpNo
    Brake SystemPower
    Collector Attachment3-bolt flange
    Flange StyleStandard
    TunedNo
    Collector Diameter3 in (76.2 mm)
    Motor Mounts IncludedNo
    Part FitmentSemi Universal
    Reducers IncludedYes
    Primary Tube Gauge16-gauge
    Header StyleFull-length
    Cross Over Pipe IncludedNo
    Catalytic Converter(S) IncludedNo
    Primary Tube Diameter1.75 in (44.5 mm)
    Vendor Part NumberH8050
    Package Qty1
    Package TypeEA
    Please click here to download the instructions PDF file

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