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TCI 4x Four-Speed GM Automatic Transmission Packages 371800P12
Part Number: TCI-371800P12
TCI 4x Four-Speed GM Automatic Transmission Packages
Automatic Transmissions, Aluminum,Forward Shift Pattern, 28 oz Balanced Flexplate, Dipstick, Transcooler, Bellhousing, 750 Hp, Ford, Each
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Estimated Ship Date: Dec 3, 2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
371800P12
Part Type:
Product Line:
Summit Racing Part Number:
TCI-371800P12
UPC:
788120162326
Number of Gears:
4
Bellhousing Bolt Pattern Manufacturer:
Ford
Transmission Shift Pattern:
Forward
Valve Body Style:
Automatic
Transmission Advertised Horsepower Rating:
750
Torque Converter Included:
No
Flexplate Included:
Yes
Transmission Controller Included:
No
Wiring Harness Included:
No
Transmission Cooler Included:
Yes
Trans-Brake Included:
No
Lockup Compatible:
Yes
Transmission Pan Style:
Stock
Transmission Pan Material:
Steel
Transmission Pan Finish:
Chrome
Tailshaft Length (in.):
6.000 in.
Yoke Style:
Slip-on
Input Spline Quantity:
27
Input Shaft Material:
Hardened steel
Input Shaft Style:
TH700R4
First Gear Ratio (Automatic Transmissions):
3.06
Clutch Hub:
Aluminum
Transmission Case Style:
OEM
Transmission Case Material:
Aluminum
Transmission Case Finish:
Gray
Transmission Shield Built In:
No
Flexplate Shield Built In:
No
Transmission Fluid Included:
Yes
Transmission Fluid Quantity Included:
2 qt.
Dipstick Included:
Yes
Remanufactured:
No
Quantity:
Sold as a kit.
Notes:
Included flexplate features a 28 oz. counter balance.
TCI 4x Four-Speed GM Automatic Transmission Packages
TCI 4x Four-Speed GM automatic transmission packages for externally balanced small block Fords allow you to bolt up your Ford engine to TCI's 4x Four-Speed electronically controlled 4L80E-based transmission or their non-electronic 700R4-based transmission. Bolting right up to your engine like a stock transmission, they make it easy to adapt either of these proven transmissions to any compatible engine by including the exact bellhousing, a special adapter flexplate, pilot adapter, dipstick, and other accessories in a complete package.
The 700R4-based transmission uses a Constant Pressure Valve Body to eliminate the need for careful TV cable tuning, the most common cause of 700R4 transmission failure. If you choose the 4L80E-based 4x transmission, these controls are handled electronically by your choice of the TCI EZ-TCU, TCU 2.0, or a factory GM transmission controller. All 4x Four-Speed transmissions are automatic overdrive 4-speeds with lock-up, so simply choose the one that fits your power level.
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