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Home Buy Transmission and Drivetrain Automatic Transmissions TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P9
Tremec Magnum-F Manual Transmissions TUET17638
Tremec Magnum-F Manual Transmissions TUET17638 $3,454.00
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TCI Auto Automatic Transmissions 371800P7
TCI Auto Automatic Transmissions 371800P7 $3,659.00

TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages 271701P9

$7,845.00

6X 8BLT BB CHRY TR PKG W/BELL

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Category: Automatic Transmissions
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Description

Overview

Brand: TCI Auto
Manufacturer’s Part Number: 271701P9
Part Type: Automatic Transmissions
Product Line: TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages
Summit Racing Part Number: TCI-271701P9
UPC: 788120086554
Number of Gears: 6
Bellhousing Bolt Pattern Manufacturer: Mopar
Transmission Shift Pattern: Forward
Valve Body Style: Automatic
Transmission Advertised Horsepower Rating: 850
Torque Converter Included: No
Flexplate Included: No
Transmission Controller Included: Yes
Wiring Harness Included: Yes
Transmission Cooler Included: Yes
Trans-Brake Included: No
Lockup Compatible: No
Transmission Pan Style: Stock
Transmission Pan Material: Aluminum
Transmission Pan Finish: Natural
First Gear Ratio (Automatic Transmissions): 2.97
Transmission Case Style: OEM
Transmission Case Material: Aluminum
Transmission Case Finish: Natural
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
Remanufactured: Yes
Quantity: Sold as a kit.
Notes: Designed to fit 8-bolt crankshaft applications. Includes Mopar big block bellhousing, and EZ-TCU transmission controller and harnesses.

TCI 6x 6-Speed GM 4L80E Automatic Transmission Packages

TCI 6x 6-speed GM 4L80E automatic transmission packages are the first aftermarket 6-speed automatic transmissions capable of handling 850 hp. They give you six forward gears (2.97, 2.31, 1.57, 1.18, 1.00, and 0.75) for quicker acceleration and increased fuel economy at cruising speeds. The TCI 6x 6-speed GM 4L80E automatic transmission packages are versatile transmissions that fit Chevy small block, big block, and LS Series engines. They also feature a compact design, allowing them to work in a variety of vehicle applications, including pro touring, street, and race vehicles. The TCI 6x 6-speed GM 4L80E automatic transmission packages include a paddle shifter, wiring harness, dipstick, and transmission cooler. Choose the TCI transmission package that’s recommended for your vehicle and engine application.

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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    • Phone: +1 (714) 694-3374
    • E-mail: sales@xfactorsmotorsports.com
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