TH400
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
TURNER RACING TRANSMISSIONS & CONVERTERS
From your daily driver to your next pass. Torque converters, transmission builds, and drivetrain parts backed by people who know your application.
DAYTON, OH INSIDE THE TRT SHOP
FIND YOUR FIT
Know what’s in your vehicle?
Go straight to the converters that fit.
TRT COMPETITION SERIES
Competition Series torque converters are built to order for your vehicle’s specific combination. Available in diameters from 8 to 10 inches, with sizing matched to your application and desired stall range. Your engine, transmission, vehicle weight, gearing, and intended use shape the build.
8–10 INCHDIAMETERS · APPLICATION-SPECIFIC STALL RANGES
Discuss Your ConverterStart with your setup. We’ll help you choose the configuration.
COMPETITION SERIES
A welded configuration, built for your application.
COMPETITION SERIES
A bolt-together configuration, built for your application.
PLAN YOUR COMPLETE BUILD
Explore our planned transmission lineup and talk with TRT about your build.
Explore Transmissions ↗
SIX FAMILIES. ROOM TO BUILD.
Build options will be organized
within each transmission family.
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
Tell us about your vehicle, engine combination, power target, and intended use. We’ll discuss the direction for your build.
GET THE CONVERSATION STARTED
EXPLORE THE LINEUP
Factory replacement, street, and competition options.

Manual and transbrake options for your build.
STRENGTH WHERE IT COUNTS
Explore parts by transmission, from billet shafts to deep pans.
TH400 ↗4L80E ↗6L80E / 6L90E ↗Powerglide ↗LET’S TALK ABOUT YOUR BUILD
Your engine, camshaft, gearing, vehicle weight, and how you drive all matter. Tell us about your setup and we’ll help you choose a converter.
Spec My Converter ↗Prefer to talk? (937) 999-4466
FROM THE SHOP. TO THE TRACK.THE PEOPLE BEHIND YOUR PERFORMANCE
Established in 2014 in Dayton, Ohio, Turner Racing Transmissions builds transmissions and torque converters for the way you use your vehicle.
Every converter that comes off our line is checked on our in-house balancer. And when you need help choosing a setup, you can talk directly with the TRT team.
Meet TRT ↗Ask About a Transmission Build ↗“I run a custom TRT billet converter behind my 1200 horse N/A 632 big block chevy and am beyond happy and impressed with the performance and reliability it delivers without breaking a sweat!
YOUR NEXT BUILD STARTS HERE