Las Vegas, Nevada – It’s no secret that the trusty GM 4L80E automatic has usurped the TH400 in many gearhead circles as the go-to choice for high performance builds. And while the 4L80 has proven plenty reliable when set up correctly, you’ll want a torque converter that’ll be able to withstand the extra stress of a high output motor.
Enter the folks at Boss Hog.
They’re experts at torque converter design and construction, and their latest masterpiece is a new 4L80E torque converter that’s super tough and able to put massive amounts of power to the ground.
Perhaps most importantly, it’s incredibly lightweight—and that weight savings pays big, big dividends when talking about the longevity and overall performance of your driveline.
And did we mention that it’s tough? So tough that the Boss Hog team tells us that it can handle up to a whopping 1,400 horsepower, making it an excellent choice for track cars and high performance street machines.
Get an earful on the development of these Boss Hog 4L80E torque converters in this video interview with the Summit Racing team during the 2025 SEMA Show. Then check pricing and availability in the link below.
