Overview
Brand: FTI Performance
Manufacturer’s Part Number: TH400-4K21
Part Type: Automatic Transmissions
Product Line: FTI Performance TH400 Level 4 Transmissions
Summit Racing Part Number: FTI-TH400-4K21
UPC: 887753824790
Number of Gears: 3
Bellhousing Bolt Pattern Manufacturer: Chevy
Transmission Shift Pattern: Reverse
Valve Body Style: Full manual
Transmission Advertised Horsepower Rating: 900
Torque Converter Included: Yes
Flexplate Included: No
Transmission Controller Included: No
Wiring Harness Included: No
Transmission Cooler Included: Yes
Advertised Flash Stall Rating: 3,400-3,800 rpm
Trans-Brake Included: Yes
Lockup Compatible: No
Transmission Pan Style: Deep
Transmission Pan Material: Aluminum
Transmission Pan Finish: Natural
Yoke Style: Slip-on/bolt-on
Input Spline Quantity: 30
Input Shaft Material: Hardened steel
Input Shaft Style: TH350/400
First Gear Ratio (Automatic Transmissions): 2.43
Clutch Hub: Billet Steel
Transmission Case Style: OEM
Transmission Case Material: Aluminum
Transmission Case Finish: Black
Transmission Shield Built In: No
Flexplate Shield Built In: No
Fluid Fill Location: Case
Transmission Fluid Included: Yes
Transmission Fluid Quantity Included: 12 qt.
Dipstick Included: Yes
SFI Rating: SFI 4.1/ 30.1
Remanufactured: Yes
Quantity: Sold as a kit.
Notes: This kit includes a 3400-3800 stall billet torque converter equipped with a mech. diode and balloon plate. The kit also includes FTI’s 3gal RacerPak of performance ATF and a locking dipstick & tube. Kit also includes a complete cooler kit that includes the cooler, 15ft of line, hose ends, and fittings.
FTI Performance TH400 Level 4 Transmissions
FTI Performance TH400 Level 4 transmissions feature a full manual valve body equipped with a transbrake for the ultimate drag racer. They make an excellent choice for weekend bracket racers, high-powered street cars, and mud trucks. The transmissions have: a 34-element intermediate sprag, performance clutches and steels, high-flow pump, race-prepped stock case, deep aluminum pan, billet forward clutch hub, heavy-duty intermediate retainer, and a 4-clutch intermediate pack. Some models are compatible with Ultra Bell bellhousings.
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