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Patriot Exhaust H8423-1

Circle Track Headers 289-351W Small Block Ford

Patriot Exhaust H8423-1

737-H8423-1

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Patriot Exhaust H8423-1 Circle Track Headers 289-351W Small Block Ford $347.99
Circle Track Headers
  • 289-351W Small Block Ford
  • 1-5/8'' Primary Tubes
  • 3'' Collector
  • Oval Port Shape
  • Metallic Ceramic Coated

  • Patriot Exhaust H8423-1 Details

    ICMA Headers

    Fits:

    • All 289-351W Ford Engines

    Notes:

    • Exits toward front tire.
    • Can be run upside down to gain clearance but will require relocating water temperature sending unit.

    Note: The product accompanying this document is legal only for off-highway use (except in California or states that have adopted California emission standards), racing use or for use on pre-emission-controlled motor vehicles/motor vehicle engines (pre-1966 domestic vehicles certified to California standards, pre-1968 domestic vehicles certified to federal standards and all pre-1968 foreign vehicles), per the manufacturer’s application guide.

    Specifications:

    Gaskets Included
    Yes
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Slip fit
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    Oval
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Circle Track 4-1 one-piece
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 5/8
    Primary Tube Gauge
    18-gauge
    Quantity
    Sold as a pair
    Reducers Included
    No
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    H8423-1

    Patriot offers affordable racing headers for many applications in the popular IMCA Modified, Sprint Car, Late Model Sportsman, Street Stock, Mini-Stock and Pony Car classes. Patriot headers use precision machined flanges and lightweight but strong 18 gauge tubing. Mandrel bent primaries and long transition collectors reduce backpressure for increased exhaust velocity. Some applications are available with a stepped pipe design to help broaden the torque curve for better corner acceleration. Available with our optional metallic ceramic thermal barrier coating which is corrosion and heat resistant up to 1600º F providing increased thermal fatigue protection and lower under hood temperatures.

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