Putting a transmission behind a high-power street/strip car, hot rod, or mud truck can be a tricky proposition, because there are a ton of parts that need to play nice together without going snap.

That’s why we really liked these new TH400 Level 4 Transmission packages from FTI Performance.

The FTI folks eliminate a ton of your homework by perfectly matching transmission parts and components that’ll work well for engines making up to 1,000 horsepower. Starting with a race-prepped Level 4 TH400 transmission, FTI Performance tosses in a trans brake, fluid cooler, dipstick, FTI’s proprietary transmission fluid, and a torque converter.

Each kit is SFI 4.1/30.1 approved and you have your choice of torque converter stall speeds:

  • FTI-TH400-4K21 – Level 4 TH400 Transmission Kit, 3,400 to 3,800 rpm stall
  • FTI-TH400-4K51 – Level 4 TH400 Transmission Kit, 4,000 to 4,400 rpm stall

The kits are only available through Summit Racing. And the Summit Racing folks got a good rundown of these kits at the 2022 PRI show too. So if these TH400 bundles sound like a good option for your high-power ride, learn more in the interview below:

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