JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit
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JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit

Riot Parts
353904
In stock
$924.99
Features & Benefits Forged 2618 Aluminum Alloy – Maximum strength and excellent thermal resistance for high-compression...
$924.99

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JE Pistons Ford Modular 3.661in Bore 1.168in CH 1.36 CC Piston Kit

Features & Benefits

  • Forged 2618 Aluminum Alloy – Maximum strength and excellent thermal resistance for high-compression and boosted applications.

  • +1.36 cc Dome Volume – Ideal for naturally aspirated builds that need a bump in compression.

  • 1.168″ Compression Height – Works seamlessly with Gen 3 Coyote rod/stroke combinations.

  • FSR Skirt Design – Lightweight with reduced drag, perfect for performance and longevity.

  • Balanced Set – CNC-machined and weight-matched for perfect engine balance and smoother operation.

  • Made in the USA – Precision engineered and manufactured for American muscle performance.

  • Piston Weight – Approximately 374 grams (0.83 lbs) per piston.

  • Total Kit Weight – Approximately 12 lbs (boxed, with pins and locks).


Upgrade Your Coyote Build

Whether you're street-tuning your Mustang GT or prepping for a weekend track assault, this kit gives you a race-ready edge without sacrificing daily reliability. Get stronger, lighter internals built to rev higher and go harder — with zero compromise.


Specifications

Specification Details
SKU / Part Number 353904
Bore Size 3.661 in
Compression Height 1.168 in
Dome Volume +1.36 cc
Material Forged 2618 Aluminum
Piston Design FSR (Forged Side Relief)
Piston Weight 374 g / 0.83 lb per piston
Wrist Pin Diameter 0.866 in
Wrist Pin Specs 5115 steel, 2.250″ length, 0.180″ wall
Ring Stack 1.0 mm / 1.2 mm / 2.8 mm
Compatible Stroke 3.650 in
Rod Length Compatibility 5.933 in
Engine Application Ford Modular 5.0L Gen 3 Coyote (2018+)
Total Kit Weight Approx. 12 lbs (boxed)
Manufactured In USA

Fitment

This piston kit is engineered to fit Ford 5.0L Coyote Gen 3 engines (2018+), including:

  • 2018–2023 Ford Mustang GT (Gen 3 Coyote)

  • 2018–2023 Ford F-150 5.0L Coyote

  • Custom or stroker Gen 3 builds using 3.650" stroke and 5.933" rods

Cylinder block must be machined to 3.661″ bore for proper installation.


What’s Included

  • (8) Forged 2618 aluminum pistons

  • (8) Wrist pins (0.866″ × 2.250″, 5115 alloy)

  • (8) Wire locks

  • (1) Complete set of CNC-machined piston skirts

  • Piston rings sold separately

REVIEWS

B H

Installed these in my '19 Mustang GT build—engine revs smoother and responds quicker. The weight drop is noticeable from day one.

Ben H.

Dallas, TX

★★★★★
S R

No piston slap, no drama—just solid performance. Thanks to the FSR design, it's quieter and faster off the line.

Sarah R.

Phoenix, AZ

★★★★★
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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.

Return Shipping Address
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
2020 NE Aloclek Dr 4711 N Lamon Ave
#118 STE 12, Hillsboro, OR 97124, 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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