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Long Tube Headers 1967-70 Mustang GT 390 w/ C6/4spd


Part Number: 578-6656SJT

Long Tube Headers
  • 1967-70 Mustang GT 390 w/ C6/4spd
  • Stainless Steel w/ Titanium Ceramic Coating
  • 1-3/4" Primary Tubes
  • $955.99
    Ships 11/02/16
    if Ordered Today
    FREE Shipping
    JBA 6656SJT Long Tube Headers 1967-70 Mustang GT 390 w/ C6/4spd $955.99

    JBA 6656SJT Details

    Ford Long Tube Headers


  • For off-road racing use only. This product is not emissions legal
  • Will not fir standard 390 cylinder head. Head flange is designed for 14 bolt 390 GT cylinder head only.
  • Fits manual steering. Requires JBA 578-6656P power steering drop down bracket
  • Matching H-pipe available
  • Matching Y-pipe available

  • Specifications:

    Manufacturer's Part Number:

    JBA long tube headers are dyno and race proven to deliver the greatest possible increase in horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8" one-piece flanges, and patented JBA Firecone merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible so lowered cars do not drag the collectors on speed bumps. Each system includes high quality hardware and thorough instructions for a professional no-leak installation.

    Header Finishes

    Stainless Steel
    All JBA headers feature stainless steel construction for maximum durability. Stainless steel is stronger than mild steel and minimizes exhaust noise. Bare stainless finish. For street to severe-duty applications.

    Silver Ceramic
    Silver ceramic coating can withstand metal temperatures in excess of 1500 degrees Fahrenheit. The coating provides a polished silver appearance. For street to severe-duty applications.

    Titanium Ceramic
    Titanium ceramic is the most durable finish available. It is offered for the most severe applications. This finish has a heat range of 1600 degrees Fahrenheit and has a titanium gray color. For extreme-duty applications.

  • 3/8" thick CNC laser-cut flanges
  • Patented JBA Firecone merged collector
  • 02 sensor provisions
  • Large diameter mandrel-bent stainless steel primary tubes
  • Oversized exhaust ports

  • Prevents leaks caused by warping
  • Increased hp/tq, improved exhaust scavenging
  • Standard on EFI headers for proper connection
  • Maximum flow and high RPM efficiency
  • Accommodates ported cylinder heads

  • Does JBA 6656SJT fit your vehicle?

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    • CC: 6391
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8

    1968-1969 FORD MUSTANG

    • Liter: 6.4
    • SubModel: BASE
    • CUI: 390
    • EngineType: V8


    • Liter: 6.4
    • EngineType: V8
    • SubModel: BASE
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