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4L80E Torque Converters

4L80E Torque Converters

Circle D billet 4L80E torque converters for LS swaps, big-power street cars and drag racing. 245mm to 310mm, Pro Series and HP Series, custom stall speed. Built in Houston, TX.

  • GM 258mm Pro Series 4L80E Torque Converter
    GM 258mm Pro Series 4L80E Torque Converter

    GM 258mm Pro Series 4L80E Torque Converter

    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00

    Pro Series Billet Torque Converter Converter Diameter - 258mm - 10 1/4" Available in stall speeds from 2800 - 3700 rpm Furnace Brazed Hand TIG W...

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    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00
  • GM 245mm Pro Series 4L80E Torque Converter
    GM 245mm Pro Series 4L80E Torque Converter

    GM 245mm Pro Series 4L80E Torque Converter

    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00

    Pro Series Billet Torque Converter Converter Diameter - 245mm - 9 3/4" Available in stall speeds from 3200-4600 rpm Furnace Brazed Hand TIG Weld...

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    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00 - $1,849.00
    $999.00
  • GM 300mm HP 4L80 LS Torque Converter
    GM 300mm HP 4L80 LS Torque Converter

    GM 300mm HP 4L80 LS Torque Converter

    $899.00 - $999.00
    $899.00 - $999.00
    $899.00 - $999.00
    $899.00

    Great performance torque converter for a daily driven car or truck. This torque converter will have excellent street manners and only flash high ...

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    $899.00 - $999.00
    $899.00 - $999.00
    $899.00 - $999.00
    $899.00
  • GM 265mm Pro Series 4L80 Torque Converter
    GM 265mm Pro Series 4L80 Torque Converter

    GM 265mm Pro Series 4L80 Torque Converter

    $1,059.00 - $1,849.00
    $1,059.00 - $1,849.00
    $1,059.00 - $1,849.00
    $1,059.00

    Pro Series Billet Torque Converter Converter Diameter - 265mm - 10 1/2" Furnace Brazed Hand TIG Welded Torrington Bearings Billet Front and Bi...

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    $1,059.00 - $1,849.00
    $1,059.00 - $1,849.00
    $1,059.00 - $1,849.00
    $1,059.00
  • GM 252mm Pro Series 4L80E Torque Converter
    GM 252mm Pro Series 4L80E Torque Converter

    GM 252mm Pro Series 4L80E Torque Converter

    $2,249.00 - $2,899.00
    $2,249.00 - $2,899.00
    $2,249.00 - $2,899.00
    $2,249.00

    This is our most durable and adjustable option for the high hp street/track cars. Designed for use in 800+HP, this converter is the perfect match f...

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    $2,249.00 - $2,899.00
    $2,249.00 - $2,899.00
    $2,249.00 - $2,899.00
    $2,249.00
  • GM 310mm HP Series 4L80 Torque Converter
    GM 310mm HP Series 4L80 Torque Converter

    GM 310mm HP Series 4L80 Torque Converter

    $1,099.00 - $1,099.00
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00

    Billet Front Cover Billet Lockup Piston Carbon Lockup Clutch Lining Furnace Brazed Pump/Turbine Modified Impeller/Stator for Higher Stall Flanged ...

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    $1,099.00 - $1,099.00
    $1,099.00
    $1,099.00 - $1,099.00
    $1,099.00

Tech Articles

  • 4L80 Torque Converter Clutch Drag?
    Brady Fedro

    4L80 Torque Converter Clutch Drag?

    Let's talk about torque converter clutch drag when using a multi disc torque converter in a 4L80E transmission. We see this issue come up from time to time, especially (but not limited to) in 4L80E applications equipped with a transbrake...

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