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FlowTech Exhaust Tri-Y Headers - Ford Small-Block V8

(Ford Mustang 1965-70, F-250 1969-70, Bronco 1966-70, Galaxie 500 1965-70, F-100 1969-70, F-250 Pickup 1969-70, Fairlane 1965-70 + 76 more models)

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2 part numbers · from $149.95
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from $149.95

In Stock (10+)

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Product Details

FlowTech Exhaust Tri-Y Headers represent a race-proven performance upgrade for classic Ford small-block V8 applications, replacing restrictive factory cast iron exhaust manifolds with a purpose-engineered header design. Rooted in a racing heritage that traces directly back to the iconic Shelby GT350, these headers have earned a lasting reputation among Ford enthusiasts seeking real-world power gains at an accessible price point — a philosophy FlowTech has maintained since the brand's founding in 1994.

Tri-Y Collector Design

  • Two-stage Tri-Y tube pairing optimizes exhaust scavenging across a broad RPM range for a wider, more usable powerband
  • Delivers stronger mid-range torque compared to traditional 4-into-1 designs — ideal for street driving and mixed-use performance builds
  • Reduces exhaust backpressure to improve engine breathing efficiency and sharpen throttle response
  • A time-proven performance architecture with decades of proven use on the street and at the track

Quality Construction

  • Mandrel-bent tubes maintain a consistent diameter throughout each runner, preserving maximum exhaust flow velocity and enhancing the cylinder scavenging effect
  • Heavy-duty 16-gauge steel tubing provides increased strength and durability under high-performance demands
  • Heavy-duty header flanges resist warping and ensure a leak-free seal at the cylinder head
  • Slotted port flanges provide additional clearance during installation, simplifying the bolt-on process
  • Dimpled tubes at the port provide additional bolt clearance; flanges are parallel-ground for a tight, reliable seal

Purpose-Built for Ford Small-Block V8 Platforms

  • Engineered specifically for Ford 260, 289, and 302 cubic inch small-block V8 engines found across a wide range of classic Ford and Mercury vehicles
  • Direct bolt-on fitment on compatible platforms — no cutting or major modification required
  • Compatible with stock and most aftermarket exhaust systems for straightforward integration at any build level
  • An ideal performance foundation for restorations, restomod projects, or dedicated street performance machines

Available in multiple finish options to match your build environment and preferences, FlowTech Tri-Y Headers deliver on the brand's core philosophy: race-proven exhaust technology engineered for real performance at real-world prices. Select the correct variant for your specific application from the options below.

Products specifications

Fits

Ford Mustang 1965-70, F-250 1969-70, Bronco 1966-70, Galaxie 500 1965-70, F-100 1969-70, F-250 Pickup 1969-70, Fairlane 1965-70, Ranchero 1965-70, Torino 1968-70, Falcon 1965-70, Galaxie 1965-67, LTD 1965-70, Custom 1965-70 + 70 more models

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2 items

Exhaust
Description
Specifications
Bolt Size3/8-16 x 3/4
BrandFlowtech Exhaust
CARB (California) CompliantNo
CategoryExhaust
Collector Attachment3-bolt flange
ColorBlack
DesignTri-Y
EGT PortNo
Emission Code4
EngineFord Small Block
FinishPainted
FLANGE Thickness3/8"
Gasket Or Seal IncludedYes
Grade TypePerformance
Header FinishBlack Paint
Header StyleTri-Y
MaterialMild Steel
Mounting Hardware IncludedNo
Oxygen Sensor PortNo
Part TypeExhaust Header
Port ShapeOval
Primary Tube Dia.1-1/2 inch
Product TypeHeaders
Sheen LevelSatin
Sub CategoryExhaust Manifolds
WarningCalifornia Proposition 65
$149.95
PART NUMBER: 12119FLT
In Stock (10+)
Usually delivered within 2 days
Exhaust
Description
Specifications
Bolt Size3/8-16 x 3/4
BrandFlowtech Exhaust
CARB (California) CompliantNo
CategoryExhaust
Collector Attachment3-bolt flange
ColorSilver
DesignTri-Y
EGT PortNo
Emission Code4
EngineFord Small Block
FinishPolished
FLANGE Thickness3/8"
Gasket Or Seal IncludedYes
Grade TypePerformance
Header FinishPolished
Header StyleTri-Y
MaterialMild Steel
Mounting Hardware IncludedYes
Oxygen Sensor PortNo
Part TypeExhaust Header
Port ShapeRectangular
Primary Tube Dia.1-1/2 inch
Product TypeHeaders
Sheen LevelSemi-Gloss
Sub CategoryExhaust Manifolds
WarningCalifornia Proposition 65
$389.95
PART NUMBER: 12120FLT
In Stock (10+)
Usually delivered within 2 days

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