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Flexplate - LS Engine to 4L80 Trans

FMQX_19260102
In stock
Flexplates and Components
$94.00 $90.50
Swapping an LS engine into your build and hooking it up to a 4L80E transmission? You...
$90.50
customers are viewing this product
Flexplate - LS Engine to 4L80 Trans
Description

Swapping an LS engine into your build and hooking it up to a 4L80E transmission? You need a reliable LS to 4L80E flexplate that won't flinch under pressure. This steel 168-tooth internal balance flexplate is built to bridge the gap between GM LS-Series engines and 4L80E transmissions with precision, strength, and compatibility right out of the box.

Crafted from high-strength steel and designed to OEM tolerances, this flexplate ensures consistent engagement and reliable torque transfer across demanding builds. Whether you're setting up a street sleeper or a full-blown drag car, the included spacer is a must-have for achieving correct starter alignment and depth when pairing an LS engine to the 4L80E platform, something many flexplates on the market overlook.

Don't risk your drivetrain with a subpar part. This LS to 4L80E flexplate supports internally balanced LS engines and is engineered specifically for the GM 4L80E transmission, ensuring bolt-on confidence and performance. Ideal for builders, racers, or restorers chasing strength, reliability, and peace of mind during every launch.

Features:

  • 168-Tooth Design – Optimized for GM 4L80E compatibility with consistent starter engagement.

  • High-Strength Steel Construction – Built to handle high-torque LS builds without warping or cracking.

  • Internal Balance – Suited for factory-balanced LS engines, eliminating the need for custom crank balancing.

  • Spacer Included – Correct starter alignment guaranteed, saving you time, hassle, and potential failure.

  • Precision-Cut for Perfect Fitment – Bolts up cleanly to both LS crank flanges and 4L80E torque converters.

  • Engineered for Performance Applications – Trusted by racers and builders for street, strip, and track use.

Tired of chasing down odd adapters or troubleshooting starter misalignment after an LS swap? This LS to 4L80E flexplate is purpose-built to eliminate the most common frustrations during LS engine and 4L80E trans pairings. No more mismatched bolt holes, spacer confusion, or reliability doubts, just smooth installation and performance-ready reliability you can count on.

Specifications:

Tooth Count 168
Material High-Strength Steel
Balance Type Internal
Spacer Requirement Yes (Included)
Engine Compatibility GM LS-Series Engines (Internal Balance)
Transmission Compatibility GM 4L80E Automatic Transmission
Finish Raw Steel
Bolt Pattern LS Crankshaft to 4L80E Torque Converter



REVIEWS

JB

Had a nightmare trying to get my 6.0 LS mated up to a 4L80E in my '72 C10 until I found this flexplate. Bolted right up, no weird spacing issues, and the starter lined up perfectly thanks to the included spacer. Absolutely worth it if you're doing an LS swap the right way.

⭐️⭐️⭐️⭐️⭐️

James B.

Nashville, TN

MK

Finally, a flexplate that just works. I’ve tried a couple before this that claimed LS to 4L80E compatibility but had fitment issues. This one fit perfectly on my 5.3L LS and the 4L80E in my Chevelle build. Feels solid and no vibrations. Super happy with the purchase.

⭐️⭐️⭐️⭐️⭐️

Michael K.

Reno, NV

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Effective Date: October 2024

We offer a 30-day return policy, allowing you to request a return within 30 days of receiving your item. To qualify for a return, the item must be in its original condition—unused, with tags, and in its original packaging. A receipt or proof of purchase is also required.

To initiate a return, please contact us at info@riotparts.com. Returns must be shipped to the address provided upon request. If your return is approved, we will issue a return shipping label along with detailed instructions.

Important: Returns sent without prior authorization will not be accepted.

For any return-related inquiries, please reach out to us at info@riotparts.com.

The return shipping address will be determined based on the requestor’s location to ensure the nearest return facility is used. Possible return locations include:

10880 Lear Blvd. Reno, NV 89506, United States

931 W. Bardin Rd., Suite 150–200 Arlington, TX 76017, United States

3035 Campus Dr. Hatfield, PA 19440, United States

5789 N. Graham Road, Ste 200 Whiteland, IN 46184, United States

Damages and Issues

We recommend inspecting your order upon receipt. If you find that an item is defective, damaged, or if you received the wrong item, please contact us immediately so we can address the issue.

Exceptions / Non-Returnable Items

Certain items cannot be returned, including:

Electrical parts that have been installed or used

Special order parts that were custom ordered for you

Items that have been damaged due to improper installation or use

If you have questions or concerns about a specific item, please contact us for assistance.

Exchanges

For exchanges, the quickest option is to return the item you have. Once the return is accepted, you can make a separate purchase for the new item.

Refunds

We will notify you once we receive and inspect your return to inform you whether your refund is approved. If approved, you will be automatically refunded using your original payment method within 10 business days. Please be aware that it may take additional time for your bank or credit card company to process and post the refund.

If more than 15 business days have passed since your return was approved and you haven’t received your refund, please contact us at info@riotparts.com.

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